Showing posts with label flooding. Show all posts
Showing posts with label flooding. Show all posts

Saturday, August 1, 2020

Wild Free and Happy Sample 44


[Note: This is the forty-fourth sample from the rough draft of my far from finished new book, Wild, Free, & Happy.  The Search field on the right side will find words in the full contents of all rants and reviews.  These samples are not freestanding pieces.  They will be easier to understand if you start with sample 01, and follow the sequence listed HERE — if you have some free time.  If you prefer audiobooks, Michael Dowd is in the process of reading and recording my book HERE.]

SACRED SOIL

Life Giving Sunbeams

All animals, including humans, run on sunbeam energy.  We can’t absorb it directly, via exposure to the sunlight, but plants can.  They use the sunbeam energy to create carbohydrates, the building blocks of life.  Animals that eat plants can then absorb those nutrients.  Animals that eat animals can acquire the sunbeams from their prey. 

If there were no plants, there could be no animals.  Grazing animals are able to survive because they can digest grasses and forbs.  Many other animals can’t, including carnivores and humans.  Humans are omnivores, meaning that we can digest nutrients produced by a wide variety of plants and animals.  To oversimplify, when more food is available, human communities can expand.  The availability of food is affected by variables including temperature, precipitation, soil fertility, and daylight hours.

In the good old days, the plants and animals in wild ecosystems coevolved over time, which helped them adapt to stable long-term survival in local conditions.  With the transition to plant and animal domestication, humans could produce greater quantities of food.  But the artificial ecosystems they created (cropland and pasture) had less natural diversity and stability.  By increasing food production, agriculture could free some people from manual labor, allowing them to pursue specialized knowledge and technological innovation.  More recently, with the transition to mechanized, high-tech, fossil powered, industrial agriculture, both harvests and impacts sharply increased, as did the population of humankind. 

Both food production and population have experienced catastrophic growth in the last century.  The next 50 years are going to be very different from the last 50 years.  A number of factors are now increasing the risks for food production as we know it, and for life as we know it.  We’re getting closer to peak global food production, peak population, and the end of economic growth.  On the following pages, I’m going to briefly discuss some of these food-related factors, while paying more attention to farming than herding.

Soil Creation

David Montgomery is fascinated by soil, and extremely disturbed by humankind’s intensifying war on it.  Dirt begins as mineral particles that become detached from solid rock.  This can happen because of temperature shifts, frost action, abrasion, water, bacteria, fungi, penetrating plant roots, and so on.  At first this dirt is lifeless, like sand.  If not disturbed, it builds up over the centuries.

At the ground surface, where sunbeam energy arrives, the dirt is exploding with life, especially in wetter and warmer climates.  This big magic layer is called topsoil.  A shovelful can contain more organisms than the population of humankind — worms, insects, burrowing animals, and microbes.  Under ideal conditions, it builds up over thousands of years, and provides a good home for green solar collectors called plants. 

Topsoil is nourished by biomass — dead vegetation, discarded leaves, rotting wood, carcasses, poop, and so on.  The composting team turns this organic matter into a treasure called humus.  Humus retains moisture, keeps the soil loose, improves soil fertility, and provides a home for the legions of wee organisms that are necessary for plant growth.

The roots of plants penetrate into the soil, where they retrieve water and nutrients.  Up above, the carpet of vegetation in the sunlight helps hold the soil in place, so it isn’t carried away by wind or water.  Topsoil is the foundation of the family of life.  It nourishes the beings that are alive, and composts the biomass they leave behind.  This complicated process of big magic has worked wonderfully for several billion years — without human managers, if you can imagine that.

Unfortunately, the powerful and relentless enemy of topsoil is human cleverness.  Some cultures became dissatisfied with simply adapting to conditions in their wild ecosystems.  They were irritated by the persistent itch of population pressure, an itch that can turn people into blithering idiots.  Spencer Wells lamented the transition to agriculture, when we began shifting from foraging to producing food.  “Instead of being along for the ride, we climbed into the driver’s seat.”  We had no idea of what we were doing, or where we were going.  Richard Manning agreed.  He said that in the good old days, “we didn't grow food; food grew.”

Soil Destruction

Walter Youngquist wrote that the average depth of topsoil, around the world, is less than one foot (30 cm).  He added that almost all modern folks consider oil to be a vital strategic resource, but few have a similar appreciation for soil.  We can live without oil, and some day we will, once again, return to good old-fashioned, slower and simpler, oil-free living.  But soil is far more important to humankind, and to the rest of the family of life — yesterday, today, and forever after.

He warned that, from a human timeframe, topsoil is a nonrenewable resource, because new topsoil is created over the passage of centuries, on a geological timeframe.  “Overall, one-third of the topsoil on U.S. cropland has been lost over the past 200 years.”  Humans are destroying it far faster than nature creates it.  Some say 10 times faster, others say 20 or 40.  He mentioned the work of Peter Salonius, a soil scientist who performed 44 years of research.  Salonius came to the conclusion that all extractive agriculture, from ancient times to the present, is unsustainable.

It’s common to see the wishful label “sustainable agriculture” used to describe methods and products claimed to have miraculous qualities.  The folks who use it depend on a blindfolded, gagged, handcuffed, and castrated definition of sustainability (or a lively imagination).  A genuinely sustainable way of life is one that can survive for many thousands of years without self-destructing, or diminishing the wild ecosystem.  Sustainable agriculture strategies imply a never-ending need for unimaginably dedicated, principled, and knowledgeable human management. 

Big Mama Nature’s wild ecosystems are brilliant living masterpieces.  They require no active management from tropical primates.  The healthy verb is “adapt,” like our wild ancestors did for most of the human saga.  The toxic verb is “control,” an approach with a time-proven record of smashing apart ecosystems, harder and faster with each passing year.  Human cleverness could never create a system so complex, which worked so well, over enormous spans of time.  Nature thrives in absolute freedom, and takes great pleasure in sabotaging the plans of ambitious control freaks, who seem fantastically incapable of learning from their repeated mistakes.

Wild is a holy word.  “Wilderness” means “disorder,” a place that is out of control — in other words, “free.”  The emergence of agriculture, herding, patriarchy, and civilization was a tragic shift into an unfree culture of intense control.  Wilderness is a place without paths or roads that lead to a destination, a place with no speed limits or law enforcement, a place where you are free to move as your spirit inspires you.  Robert Harrison asserted that bewilderment (be wilder) is about being fully alive.  He wrote, “When one is fully alive, the entire world is alive.”

The culture of control, on the other hand, is diabolically destructive.  Joel Bourne reported that every year, a million hectares (2.4 million acres) of world cropland are taken out of production because of erosion, desertification, or development.  Writing in 2000, J. R. McNeill wrote that the U.S. was currently losing 1.7 billion tons of topsoil per year to erosion.  In 2000, there were 281 million Americans.  So, the loss would have been six tons per person. 

Where is this heading?  Writing in 2012, John Crawford, a risk analysis expert, wrote that “A rough calculation of current rates of soil degradation suggests we have about 60 years of topsoil left.  Some 40% of soil used for agriculture around the world is classed as either degraded or seriously degraded — the latter means that 70% of the topsoil, the layer allowing plants to grow, is gone.”  [LOOK]

In some locations, visible evidence of this loss is obvious, in large clouds of dust, erosion gullies, or runoff that looks like chocolate milk.  In other places, the loss may not be readily visible during a lifetime.  When you gaze at a large field, decade after decade, you might not notice tons of gradual soil loss.  Youngquist mentioned a study finding that when one hectare of land lost six metric tons of soil, the surface of the soil dropped just one millimeter.  He thought that erosion was similar to cancer, a persistent intensifying destroyer.

Soils with less humus absorb less water, which increases runoff and soil loss.  Light soils like loess are more likely to disappear than dense heavy soils.  Sloped land is most prone to erosion.  Some regions of Europe typically receive gentle rains, while some locations in the U.S. often receive heavy cloudbursts that cause rapid runoff.  Of course, wild grasslands and forests excel at absorbing moisture, building humus, and retaining soil. 

When forest is cleared, or grassland is plowed, the soil is exposed to incoming sunlight.  As the soil warms up, microbial activity is stimulated, which accelerates the oxidation of the carbon-rich humus.  Precious carbon built up over the passage of years is dispersed into the atmosphere as carbon dioxide.  Soil fertility declines, and will not be promptly restored, if ever. 

All tilling, to varying degrees, degrades or destroys soil.  The healthy green blanket of natural vegetation that protects the precious topsoil is entirely stripped off the face of the land.  This leaves the defenseless, viciously pulverized, bare naked soil exposed to the merciless abuse of dangerous control freaks.  The soil dries out, hardens, and absorbs less precipitation, which accelerates runoff.  This increases the chances of sheet erosion, gullying, landslides, and flooding.  It can sometimes take centuries for nature to replace the unprotected topsoil lost in a stormy hour. 

Long ago, the Mediterranean basin became a hotbed of civilizations as agriculture spread westward out of Mesopotamia.  The Mediterranean climate provided heavy winter rains, making it a suitable place to grow wheat and barley.  Much of the basin was sloped land, which was extensively deforested over time, driven by growing demand for lumber and firewood. 

Flocks of sheep and goats roaming on the clear-cut hillsides overgrazed, encouraged erosion, and prevented forest recovery.  By and by, the rains leached out the nutrients, and washed much of the fertile soil off the hillsides.  In many locations, bare bedrock now basks in the warm sunshine, where ancient forests once thrived in ancient soils.

Vernon Gill Carter noted that, in the good old days, the Mediterranean used to be among the most prosperous and progressive regions in the world.  But when he wrote in 1955, most of the formerly successful civilizations had become backward.  Many had just a half or a third of their former populations.  Most of their citizens were reduced to a low standard of living, compared to affluent societies.

Montgomery noted that these ancient civilizations often enjoyed a few centuries of prosperity, as they nuked their ecosystems.  Sadly, the soils of the Mediterranean basin were largely destroyed by 2,000 years ago, and they remain wrecked today.  They are quite likely to remain wrecked for many, many thousands of years.  Much of the region that once fed millions is a desert today.

I never learned any of this in school.  Instead, this region was celebrated as the glorious birthplace of civilization, democracy, and science.  It had incredible architecture and dazzling artwork.  It was home to brilliant writers and philosophers (no mention of slaves).  Many of our public buildings today, with their ornate marble columns, pay homage to this era when we first got really good at living way too hard.

Of course, progress never sleeps.  J. R. McNeill wrote a fascinating (and sobering) book on the environmental history of the twentieth century, when cultures blind drunk on gushers of cheap oil spurred a population explosion that probably caused the most destruction to Earth since the Chicxulub asteroid wiped out the dinosaurs.  (Will the twenty-first century be even worse?)

For example, he noted that in the world, about 430 million hectares (seven times the size of Texas) has been irreversibly destroyed by accelerated erosion.  “Between 1945 and 1975, farmland area equivalent to Nebraska or the United Kingdom was paved over.”  By 1978, erosion had caused the abandonment of 31 percent of all arable land in China.  His book is 360 pages of relentless full dose reality that is guaranteed to bring bliss ninnies and hope fiends down from their fluffy clouds in dreamland.  It will inspire adults who are still capable to critical thinking to reexamine our culture’s myths of wondrous progress and technological brilliance.

Organic Fertilizer

Our lives are dependent on plant life.  Plant life is dependent on sunbeams, air, water, and soil nutrients.  In healthy wild ecosystems, these nutrients are continuously recycled, century after century.  Plants acquire nutrients from the soil, which are passed on to the deer, maybe passed on to the mountain lion, and finally returned to the soil again — a happy living merry go round that never stops. 

It’s a different story with agriculture.  The crops absorb the soil nutrients, their edible parts are harvested, and hauled away.  The nutrients in the exported food are never returned to the soil.  Harvest by harvest, soil fertility is depleted, and the nutrient content in the harvested food declines.  Attentive farmers in ancient Greece and Rome were pained to observe that with each passing year, crop growth was less robust, and the harvests were smaller.  This was not a path with a future.

For several thousand years, this hemorrhage of nutrients was slowed a bit by holding livestock in confined pastures, collecting their manure, and spreading it on the tilled fields.  Critical thinkers will instantly recognize that moving the nutrient-rich poop from the pasture to the field depletes the nutrients in the pasture’s soil — a downward spiral.  No free lunch.  Farmers in many regions tried many different ways of keeping soil fertility on life support, by applying sewage, manure, ashes, lime, bone meal, seaweed, compost, peat moss, and other stuff.  In China, human wastes have been used as fertilizers for 5,000 years.

There are three absolutely must-have nutrients for all plant and animal life (including us), for which there are no substitutes — nitrogen (N), phosphorus (P), and potassium (K).  Modern synthetic fertilizers include portions of each in their NPK products.  Humans acquire these three nutrients by eating animal foods and/or plants. 

Phosphorus and potassium are elements in mineral compounds that plant roots extract from the topsoil they grow in.  Nitrogen is 78 percent of the air we breathe, but it is not in a form that living things can use.  Atmospheric nitrogen consists of pairs of nitrogen atoms (N2).  Luckily, in the soil are nitrogen-fixing bacteria that convert atmospheric nitrogen into ammonia (NH3), which can be used by living things.  These bacteria grow on the roots of leguminous plants, which include peas, beans, clover, and vetch. 

While livestock acquire nitrogen from the grass they eat, they retain a third of it.  So, their manure did not replace all of the nitrogen extracted from the soil by the grass.  To maintain the nitrogen content in the soil, farmers had to invest time and labor to regularly plant cover crops of legumes.  Please take a moment to appreciate how wild ecosystems automatically and elegantly recycle nitrogen, while the process in control freak cultures requires an investment of time and labor.

For the corn-growing civilizations of Mesoamerica, livestock was not an option, so they carefully gathered the precious nutrients excreted by humans, and returned them to the cropland from whence they originated.  This must have been an endlessly fun-filled process in the city of Tenochtitlán (now Mexico City), home to 200,000 folks who had no wheeled carts or (nonhuman) beasts of burden. 

In 1909, Franklin Hiram King visited Kyoto, Japan.  One morning, he observed several processions of carts, each bearing six 10-gallon (38 l) receptacles of city wastes out to farms.  In the five hour period he watched, these caravans moved at least 90 tons of waste — and this was just on one road.  Other roads had similar traffic — day after day.  Humans did not evolve for city living.

The waters off the coast of Peru are home to lots of phytoplankton (wee plants), which are consumed by lots of anchovies, which are consumed by lots birds, who excrete a magnificent fertilizer called guano.  It is exceptionally rich in nitrogen, containing from 8 to 21 percent by mass.  Farmers used it during the Incan Empire to fertilize their fields.  Over the course of thousands of years, seabirds deposited guano on offshore desert islands.  Guano deposits in wetter climates are far less potent, because rain leaches out the precious nutrients.  Some Peruvian deposits were over 200 feet (61 m) high. 

By the 1840s, agricultural productivity in North America and Europe was wheezing, due to declining soil fertility.  Traditional farming methods were setting limits on the number of people who could be fed.  Guano was a potent nitrogen-rich medicine, and a guano gold rush commenced, which led to the War of the Pacific (1879-1884).  Farmers who used guano no longer had to regularly recharge their soil by planting cover crops of nitrogen-fixing legumes.  This enabled them to produce more food.  Guano production peaked around 1870, as attention was shifting to the saltpeter (sodium nitrate) deposits in the deserts of Chile.

Inorganic Fertilizer

While fertilizers like guano and saltpeter provided nitrogen, phosphorus was more challenging.  Applying ground up bones was not especially effective.  The need for a potent source of phosphate inspired the development of a synthetic fertilizer — superphosphate.  Beginning in 1848, crushed phosphate-bearing minerals were treated with sulfuric acid, and a star was born.  Of the three most essential nutrients (NPK), phosphorus is the most worrisome.  Some say that the production of phosphate minerals peaked in 1989.  It can be recycled from sources like compost, urine, bones, and sewage, but not on an industrial scale.  Eventually, shortages can be expected to retard the human juggernaut.

The potassium component of NPK is provided by a variety of minerals rich in potash (K2O) that are found in the salt beds of ancient seas and lakes.  These minerals are fairly abundant, so far, but not forever.

J. R. McNeill noted that by 1900, German farmers were highly dependent on imported guano.  Without it, they would not be able to successfully feed Germany.  In 1909, chemist Fritz Haber discovered a process that could extract nitrogen from the air (N2), mix it with methane (CH4), and embed it in ammonia (NH3), via an energy-guzzling process of high heat and pressure.  Then, Karl Bosch figured out how to perform this process on an industrial scale. 

In 1911, Germans began the commercial production of synthetic ammonia, which contained nitrogen in the plant-friendly form, bypassing the ancient dependence on soil bacteria, and reducing agriculture’s addiction to livestock manure.  The Haber-Bosch process also provided nitrates used to make high explosives, as the world was moving toward the First World War.  Today, about 80 percent of synthetic ammonia is made using a natural gas feedstock — a finite nonrenewable resource.

Writing in 2001, when the population was a mere six billion humans, nitrogen expert Vaclav Smil estimated that 40 percent of the people alive in 2000 existed only because of the intensive use of synthetic ammonia fertilizer.  It had (temporarily) pushed back the limits on population size.  The population explosion was also accelerated by the Green Revolution, discussed later.

In the second half of the twentieth century, the production of various synthetic NPK fertilizers skyrocketed: 4 million tons in 1940, 40 million tons in 1965, and 150 million tons in 1990.  Far more food was produced, and the human population soared.  Today, the benefits of these fertilizers are maxing out — applying more of it to a field no longer increases the size of the harvest.

Richard Manning noted that when farmers apply synthetic fertilizer on a field, less than half of it reaches its intended target, the crop plants.  Some of it dissolves and moves into groundwater, and lots of it runs off into waterways.  Much of the U.S. Corn Belt drains into the Mississippi River, which is an ecological catastrophe.  Nitrogen stimulates algae blooms that deplete the oxygen content of the water (anoxia), which can cause everything to die (eutrophication).  The river flows into the Gulf of Mexico, where it has created a dead zone the size of New Jersey.  About half of U.S. lakes have low oxygen content, and the number of dead zones in the world continues growing (over 400 in 2008).

And so, dear reader, this is a brief peek at how agriculture has impacted the planet, from the perspective of soils.  The full story is much longer, more complex, and far worse.  Human cleverness is like a wildfire in a bone dry forest on a very windy day — nothing can stop it, it just keeps destroying.  This provides a profound lesson on the incredible elegance of the healthy wild ecosystems that Big Mama Nature nurtured for eons, prior to domestication.  Natural time-proven wild sustainability is essentially perfect, a masterpiece.  Honor it with respect and reverence.

Thursday, January 2, 2020

Wild Free and Happy Sample 29


[Note: This is the twenty-ninth sample from my rough draft of a far from finished new book, Wild, Free, & Happy.  I don’t plan on reviewing more books for a while.  My blog is home to reviews of 202 books, and you are very welcome to explore them.  The Search field on the right side will find words in the full contents of all rants and reviews, if you are interested in specific authors, titles, or subjects.] 

Goats

Cattle and sheep cannot thrive on depleted grazing land, but goats are especially capable of being hardcore survivalists.  They can live on barren lands, and keep them barren.  Simon Fairlie wrote that goats are popular in India, because they can survive on the same wastes that cattle consume.  While cows are sacred, goats are not, so it’s perfectly OK to eat them.  While a goat is being raised, it can devour ten acres (4 ha) of vegetation.  They do not gently nibble on the grass, they can hungrily rip it out by the roots.  They kill young trees.  Goats can be a disaster.

Paul Shepard wrote that goats are smarter than cattle or sheep, and they are blessed with interesting personalities.  They can learn to follow instructions from their master.  They are smaller than cattle, so losses to predators are less costly to the herder.  Goats get high grades in sex education classes, and are able to produce numerous offspring.  Rustlers love them because they are easier to steal than cattle.  Goats are known as the “poor man’s cow.”  A goat can produce more milk than a sheep.

Shepard imagined that in the coming years, when our reckless turbocharged joyride of decadence runs out of gas, and glides into the misty realm of embarrassing memories, our faithful companions amidst the ruins will be goats, the “avatars of poverty.”  They have given us a 5,000 year lesson in environmental catastrophe.  He was no fan of any type of domesticated livestock.  He called them “hooved locusts.”  A primary objective for many pastoralists is maximizing wealth (larger herds), not a loving, long-term, predator tolerant, ultraconservative relationship with their ecosystems.

The Earth Policy Institute (EPI) reported that ever growing numbers of livestock are working hard every day to diminish the health of world grasslands.  The EPI has been tracking livestock population trends, nation by nation.  They report that when goat numbers are rising faster than those for cattle or sheep, this is an indicator of deteriorating grassland. 

Not fussy eaters, goats are the livestock most associated with overgrazing.  As vegetation is gobbled up, less greenery survives to absorb periodic rainfall.  Consequently, more rain runs off the land, which can lead to destructive flooding.  In addition to depleting the forage, their sharp hooves also pulverize the soil surface, making soil particles more susceptible to erosion via wind or water.  Stripped landscapes led to massive floods in Pakistan in 2010.

The EPI noted that between 1970 and 2009, while the global cattle population increased by 28 percent, goat numbers more than doubled (100+ percent).  The goat trend line began rising quickly around 1980.  The Sahel region, south of the Sahara in Africa, is becoming a dustbowl.  Every year, 867,000 acres (350,862 ha) of rangeland and cropland are being lost to desertification.  Another dustbowl is rising in central Asia, western Mongolia, and western China.

John Livingston noted that only two animals create habitats: goats and humans.  Goats create deserts.  Humans create ecological train wrecks.  Sheep and goats don’t know any better but, in theory, there are some humans who are capable of making intelligent choices.  History is clear on one thing, we excel at repeating the same mistakes, century after century.  As long as they satisfy immediate needs, self-destructive habits are devilishly difficult to shake.

Daniel Hillel didn’t resent goats, because goats weren’t the problem.  The problem was pastoralists who allowed their herds to get too big.  When goats were herded on overgrazed rangeland, they ate whatever they could find, because they had no other choice.  They were far better survivalists than cattle.

Of course, stepping back even further, and using perfect hindsight, it’s not hard to see a pattern that associates animal domestication with deforestation, soil destruction, and desertification.  Wild and free animals do not have a reputation for being desert makers or forest exterminators. 

Back when all critters were wild, wolves were simply ordinary neighbors, not demonic enemies.  Their role in the ecosystem was to dine on herbivores, which helped limit the herd size, which helped keep the land healthy.  Wolves have never suffered from obnoxious beliefs about owning other animals, and gaining personal status by forcibly controlling as many as possible.  Unfortunately, herders have zero toleration for non-human predators.

Cedars of Lebanon

Lebanon is located on the east shore of the Mediterranean, just north of Israel.  It has a narrow coastal plain, and a mountainous interior.  Big Mama Nature originally clothed Lebanon with grasslands and forests, and they absorbed precipitation and kept the springs flowing — a healthy ecosystem.  The cedars of Lebanon were described in older sources as a legendary forest, a sacred land (“the cedars of god”).  Originally, the forests covered almost 2,000 square miles (5,180 km2).  That was prior to the arrival of the Phoenicians.

Tom Dale wrote that, in the early days, the Phoenicians were likely nomads who herded goats.  This could have been a low impact mode of living, as long as the population of goats and humans had remained modest, via mindful self-restraint.  Agriculture required far more hard work than goat herding, so smart folks shunned it whenever possible.  As the human population grew, feeding the growing mob became more challenging.  Consequently, farming expanded across the coastal plains, and then began spreading up into the hills.

The agriculture practiced in early civilizations, like Egypt and Mesopotamia, was enabled by irrigation.  Folks at the east end of the Mediterranean, like the Phoenicians, were the first to attempt large scale rain fed agriculture on steeply sloped land (up to 34°).  They received heavy winter rains, followed by fairly dry summers, the pattern we call a Mediterranean climate (like California).

Over time, experiments in self-restraint (if any) eventually failed.  By 2500 B.C., a civilization emerged in Phoenicia.  It had an impressive merchant fleet, communities of skilled artisans, and good ports at Tyre, Sidon, and Beirut.  The biggest threat to their prosperity was insufficient food production (i.e., insufficient family planning).  As hillside agriculture intensified, stone terraces had to be built on the slopes to keep the soil from washing away.  Constructing and maintaining stepped terraces took lots and lots of hard work.  An increasingly pissed off Big Mama Nature sometimes conjured intense cloudbursts to suddenly wash them away. 

King Solomon sent 150,000 men to Lebanon to cut and haul lumber back to Palestine, where it would be used for building temples, palaces, and trophy homes for fat cats.  Mesopotamia, Anatolia, and Egypt were also growing rapidly, and needed lots of lumber.  Wood was traded for food, but the food imports were not enough.  So, the Phoenicians created a number of colonies along the Mediterranean coast from which they could extract resources.  Their civilization peaked between 1200 and 800 B.C., and blinked out in 332 B.C., when Alexander the Great conquered them, and crucified 2,000 upper class folks in Tyre.

Dale wrote that by then, most of the forests were already history.  Over the next few centuries, Greeks and Romans finished off what remained, with a few exceptions (four small groves).  Topsoil had largely washed off the hillsides, and silted up the harbors.  Clogged river deltas became malarial marshlands.  The damage was so severe that the land could not recover and allow another thriving civilization to rise from the ruins.

Anyway, over time, almost all of the cedars of Lebanon got mowed down.  Green vegetation emerged amidst the stumps, and herds of goats hungrily chewed it up.  Lebanon’s cedars don’t produce their first cones (seeds) until they are about 40 years old.  There were almost no inaccessible rocky crags where goats could not eat new trees, as fast as they appeared.  Consequently, the forests were doomed.  Deforestation, hungry goats, and winter rains were the prime causes of massive erosion that turned Lebanon into “a well-rained-on desert.”  It will take many, many thousands of years for nature to replace the lost soil.

Trendy societies destroyed their ecosystems as fast as possible, in order to soar off into a giddy high called decadence (sort of like glue sniffing kids today).  For centuries, a series of Mediterranean civilizations took turns rising and falling, conquering and being conquered.  Raiders and pirates worked hard to snatch whatever they could, whenever possible, by any means necessary. 

Writing in 1955, Dale wrote that today, Lebanon, Crete, Turkey, Palestine, Tunisia, Algeria, Spain, Italy, Sicily, Yugoslavia, and Greece were far more torn and tattered than in the good old days.  All had lived way too hard, something like a long intense binge of oblivion drinking (…and then cometh the excruciating hammer blows of a merciless permanent hangover).  In the twenty-first century, we (the most “educated” generation ever) knowingly continue repeating the same stupid mistakes, all around the world, on a vastly more destructive scale, at a much faster rate.

In 1938 and 1939, Walter Lowdermilk toured North Africa and the Middle East to learn about how ancient civilizations destroyed themselves.  He discovered that only four small groves of Lebanon cedars still survived.  The largest one was home to about 400 trees, of which 43 were old ones.  One grove was saved because a monastery was built in it, and it was surrounded by a fence to keep the goats out.  Lowdermilk took a photo of the walled grove — a modest group of trees surrounded by a vast barren mountainous moonscape.

Land of Milk and Honey

Palestine was just south of Phoenicia.  It was home of the Israelites.  Like the Phoenicians, the Israelis were pastoralists.  Both were Semitic people, and they likely had common ancestors.  “Goat” appears in the Bible 132 times, and “sheep” 188 times.  Moses helped his people escape slavery in Egypt.  They spent 40 years wandering in the wilderness.  Their destination was the Promised Land, located on the far shore of the River Jordan.  It was “a land that floweth with milk and honey,” a phrase that appears in the Bible 20 times.

Before they got there, they were blocked by the warriors of seven nations, the Amorites, Perizzites, Canaanites, Hittites, Girgashites, Hivites, and Jebusites.  All were slain in a single day, with miraculous divine assistance.  Their deity instructed the Israelites to burn the chariots of their exterminated opponents, and hough their horses.  Hough?  It means to slash the tendons of the hind legs, to cripple the animals.  Wading through the blood and guts, they finally crossed the Jordan.

Lowdermilk’s tour of the Middle East also made a stop in the Jordan Valley.  He snapped a photo of a heavily damaged hilly landscape, and wrote: “This is a present-day view of a part of the Promised Land to which Moses led the Israelites about 1200 B.C.  A few patches still have enough soil to raise a meager crop of barley.  But most of the land has lost practically all of its soil, as observed from the rock outcroppings.  The crude rock terrace in the foreground helps hold some of the remaining soil in place.”

“We found the soils of red earth washed off the slopes to bedrock over more than half the upland area.  These soils had lodged in the valleys where they are still being cultivated and are still being eroded by great gullies that cut through the alluvium with every heavy rain.”

“What is the cause of the decadence of this country that was once flowing with milk and honey?  As we ponder the tragic history of the Holy Lands, we are reminded of the struggle of Cain and Abel.  This struggle has been made realistic through the ages by the conflict that persists, even unto today, between the tent dweller and the house dweller, between the shepherd and the farmer.  The desert seems to have produced more people than it could feed.”

Mongolian Desertification

Kathleen McLaughlin described how grasslands in Mongolia are currently being degraded by climate change, and by overgrazing the variety of goats that produce cashmere wool.  Soft cashmere was formerly used to make expensive clothing.  Today, better technology for knitting in China, combined with the fast fashion trend, has moved cashmere products from the luxury class to the mass market.  Because herders make a decent income from raising goats, they are now more than half of Mongolia’s grazing livestock.  Unfortunately, goats are the most destructive grazers, because they not only eat the roots of plants, but also the flowers that produce seeds for new grasses.

The harsh winter of 2017–2018 killed hundreds of thousands of grazing animals.  The Mongolian steppe is twice the size of Texas, and it’s slowly turning into a desert.  About 70% of the grazing lands are degraded.  A number of lakes and rivers have dried up.  Overgrazing is a primary factor in grassland deterioration. 

In the 1990s, the former communist government set quotas on grazing animal numbers.  Quotas are gone now, and grazing livestock have increased from 20 million to 61.5 million.  Dead areas are growing, and soil erosion is rising.  Native grasses are being displaced by exotic species that are toxic.  Grassland degradation is also a growing threat to wildlife species.

Monday, May 9, 2016

A Plague of Sheep



Elinor Melville’s book, A Plague of Sheep, is a scary story about the Valle del Mezquital, a valley north of Mexico City.  Spanish colonists arrived there in 1521.  Melville describes the tragedy that occurred between then and 1600.  The valley is located at high elevation in a tropical region.  It has a cool and arid climate.  Valle del Mezquital means “a valley where mesquite grows.”  It got this name late in the seventeenth century, after it had been transformed into a barren land by an ecological revolution — a plague of sheep.

For the first hundred years of Spanish occupation, epidemics repeatedly blasted the natives, who had no immunity.  Between 1519 and 1620, the population of Mexico fell by 90 to 95 percent.  The Aztec and Inca civilizations were overwhelmed.  When the Spanish arrived, the densely populated Valle del Mezquital was home to the Otomi people, descendants of the once mighty Toltecs.  They were farmers who grew maize, beans, squash, chilies, tomatoes, amaranth, sage, and other crops.  The surrounding slopes were a mix of grass and forest.  Vegetation cover kept the soil moist, and there were a number of flowing springs.  This water was used to irrigate the fields.

As the native population was reduced by disease, cropland was abandoned, and became available for grazing.  The Spanish brought livestock which exploded in number because there was abundant vegetation and they had no competition from indigenous grazing animals.  Overgrazing radically altered the existing plant community, leading to irreversible changes.

The valley experienced an ungulate irruption, in which abundant vegetation is converted into abundant livestock that zoom past carrying capacity and then crash.  Eventually, some form of equilibrium is reached.  In many ways, it’s similar to the primate irruption that we’re experiencing today.  The cattle and horses could not be convinced to leave crops alone, so the herding eventually majored in sheep.

A severe epidemic from 1576 to 1581 sharply reduced the Indian population, which brought an end to their dominance in the valley.  Herding profits made sheep more valuable than Indian farmers.  Sheep rapidly grew in number.  While loggers cut trees for the mining industry, thousands and thousands of sheep stripped the land of grasses and young trees.  The hills were eventually deforested.  Some locations were stripped to bare soil, resulting in sheet erosion and gullies.  The land dried out, and the springs stopped flowing, which limited irrigation.  By 1600, “the valley was a homogenous mesquite-dominated desert.”

This is not a story of paradise transformed into parking lots, because the land was not a paradise in 1521.  Indians had lived there for thousands of years, and agriculture had not improved the land.  It encouraged erosion and other problems.  Without manure from livestock herds, soil nutrients were depleted.  The megafauna extinctions of the Pleistocene eliminated most species of large animals that may have been suitable for domestication in the Americas.  The Incas had llamas.  On the plus side, by not having livestock herds, Native Americans suffered little from infectious diseases until the Europeans arrived.

I got curious about the diet of the Indians.  It must have been similar to what the Aztecs ate in Mexico City, south of the valley.  Wikipedia informed me that Aztecs ate a number of wild animals, including fish, fowl, gophers, iguanas, salamanders, deer, crayfish, grasshoppers, ants, larvae, and insect eggs.  They also raised three domesticated animals for meat: turkeys, ducks, and dogs.

With the introduction of sheep, and the intensive overgrazing, the vitality of the Valle del Mezquital was sharply degraded.  The Spanish had no experience with grazing in this ecosystem.  Their culture was market driven, and maximizing the production of commodities was the path to prosperity and respect.  They lived as they were taught to live.

Garrett Hardin’s essay, The Tragedy of the Commons, declares that common lands are typically degraded by selfish careless use, while private property is lovingly nurtured by owners, because they have self interest in the long term productivity of the land.  But in the Valle del Mezquital, most of the overgrazing was done on private lands.  The owners were not illuminated with perfect knowledge, and they blatantly disregarded local limits on herd sizes.  Melville asserts that what happened in the valley was nothing more than the result of good old fashioned ignorance.  They didn’t know what they were doing, so they could not foresee the long term consequences.

I fell out of my chair.  Ignorance!  It’s so trendy to blame our woes on capitalism and mobs of insanely ambitious greed heads.  But our culture strongly encourages us to pursue wealth and status, by any means necessary, to the best of our ability, till the end of our days — Donald Trump is the ideal.  Our culture disastrously fails to provide everyone with a competent understanding of ecology and environmental history.  Imagine what this world would be like if we ever produced just one well-educated generation.  Our bizarre planet-wrecking mania would be cured.  Yippee!

Today, the Valle del Mezquital has enjoyed much progress, and is home to impressive refineries, cement factories, and nuclear power plants.  It has become a thriving center for the production of vegetable crops.  Irrigation now uses surface water (“black water”), which flows downstream from Mexico City, highly enriched with untreated human and chemical wastes.  Crops grow like crazy in raw sewage.  But salinization of the soil is increasing, which will eventually ruin the cropland.

The book has six chapters.  Five discuss the Valle del Mezquital, where grazing was introduced into an agricultural region.  One chapter discusses Australia, where sheep were introduced to a wild ecosystem.  Herders and herds exploded in number.  Indigenous vermin, kangaroos, were aggressively exterminated.  By 1838, much of New South Wales was “a naked surface without any perceptible pasture upon it for the numerous half-starved flocks.”  Grasslands were rubbished in 7 to 20 years.  The land dried out, erosion increased, and floods became more frequent.

Do you notice a pattern here?  Now it’s the twenty-first century, and the civilized world is raging with a devastating pandemic of get-rich-quick fever.  Almost all of our graduating scholars are nearly as ignorant as the Spanish settlers about ecological sustainability.  All our grads are tirelessly trained to believe that status seeking, via working and hoarding, is the purpose of life — a plague of shoppers.

Melville, Elinor, A Plague of Sheep, Cambridge University Press, New York, 1994.

Friday, July 31, 2015

A Sand County Almanac


Aldo Leopold’s book, A Sand County Almanac, is near the top of many lists of environmental classics.  It was published in 1949, and has sold over two million copies.  He was born in Iowa in 1887, when Earth was inhabited by just 1.4 billion humans.  It was an era before radio, television, automobiles, airplanes, computers, DDT, nuclear fission, and antibiotics.  Most roads were dirt.  Vast ancient forests still thrived.  On the first page, Leopold informs us that this is a book for people who cannot live without wild things.

Part one is a series of twelve sketches, one for each month.  They describe how the land changes during the circle of the seasons — the return of the geese, the mating ritual of the woodcocks, the rutting of the deer, the bloody snow where predators snatched prey.  They describe what life was like in simpler times, before the sprawl, the malls, the highways, the tsunami of idiotic consumer crap.  People were more in touch with the life of the land, because it had not yet been deleted.

In 1935, Leopold bought a farm in Wisconsin.  The previous owner had tried and failed to make a living tilling the lean sandy soil.  The place was cheap, far from the highway, worthless to civilization, but a precious sanctuary for a nature-loving professor.  Luckily, the soil mining enterprise perished quickly, before it had time to exterminate the wildness.

Leopold loved the great outdoors.  He loved hiking and hunting.  Birds fascinated him.  He spent many years working for the U.S. Forest Service, and later became a professor of Game Management at the University of Wisconsin.  Sadly, he lived in a culture that was waging full-scale war on nature, and this drove him mad.  It was so senseless.  During his life, the population had grown from 1.5 to 2.4 billion, an era of staggering out of control disruption.

Part two presents observations, made in assorted times and places, about the damaged relationship between Americans and nature.  This relationship was often abusive, because it lacked love.  There often was no relationship at all.  Many folks had no sense of connection to the rest of the family of life.  For them, nature was nothing more than a treasure chest of resources that God created for the amusement of ambitious nutjobs.

Leopold was saddened by the trends.  He learned to never revisit places that had amazed him in his youth.  It was too painful to see the damage that commerce and tourism were tirelessly inflicting.  It was best not to turn sweet memories into heartbreaking nightmares.

He was raised in an era when it was perfectly normal to kill wolves, coyotes, and other predators at every opportunity.  These “vermin” killed too many game animals, depriving hunters of their rightful harvest.  The most famous essay in this book is Thinking Like a Mountain.  Having just shot a wolf, the gunman noticed a fierce green glow in its eyes.  With the wolves eliminated, the deer multiplied in numbers, stripping the vegetation off the mountain, and wrecking the ecosystem.  Deer lived in fear of wolves, and the mountain lived in fear of deer.

Part three is essays describing the need for a land ethic.  Cultures have ethics to define right and wrong.  Traditionally, these defined person-to-person interactions, or the interactions between individuals and society.  Leopold lamented that American culture lacked a land ethic, rules for living with the natural world, the family of life.  In our culture, as long as the land was not claimed and defended by someone else, you were free to do whatever you pleased.

Mainstream education was close to useless, because it was incapable of recognizing the glaring defects in the mainstream worldview.  It loaded young minds with the crash-prone software of infantile self-interest.  Generation after generation was being programmed to spend their lives as robotic servants to our economic system.  The education system and the economic system were the two primary threats to the health of the land.  Today, 65 years later, the lunacy has become a roaring hurricane.  Leopold would be horrified and furious.

Leopold was a pleasant lad, glowing with love for the natural world, and a gifted storyteller.  But this should not be the only ecology book you ever read.  Since 1949, there has been an explosion of research in anthropology, archaeology, ecology, and environmental history.  Many important discoveries have been made about hunter-gatherers, agriculture, deforestation, civilization, finite resources, climate change, and ecological sustainability.  Today’s deep ecologists will sneer at a few statements in the book, but in 1949, no one was more radical than Leopold.

At the time, he knew we were on a bad path, and we needed to pay serious attention to where it was taking us.  He clearly understood what we needed.  He wrote, “Conservation is a state of harmony between men and land.  He was sketching out a concept now known as ecological sustainability.  Here’s his land ethic in a nutshell: “A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community.  It is wrong when it tends otherwise.”  Great!

Since the book was published, population has skyrocketed from 2.4 to 7.3 billion.  Our leaders, educators, and the vast human herd remain lost in a dream world where perpetual growth is the only channel on the glowing screens.  This story has paralyzed our culture, and condemned our descendants, but it’s running out of time.  Hopefully, in its aftermath, important lessons will be learned and never forgotten.

Leopold’s book was written “for people who cannot live without wild things.”  As the swelling mobs surge into vast cities, our disconnection from wild nature is almost complete.  We have forgotten who we are, and where we came from.  Well, we’re wild animals, and we came from wild nature, like every other critter.  Darwin revealed this embarrassing secret, but it still makes us uncomfortable, since it clashes with our deepest, darkest myths, our grandiose illusions of superiority.

These anthropocentric myths have ancient roots in every civilized culture, and they are like venomous brain worms that turn us into planet thrashing monsters.  In 1949, few expressed doubts about these myths, but Leopold did.  He was a flaming radical in his day.  He often dreamed that the progressive movement would eventually grow, flourish, and address the primary challenges of our time, but reality hasn’t cooperated.

His vision of a land ethic would have been a first step, but not a miraculous cure.  No other animal needs a formal system of rules and regulations to discourage self-destructive behavior.  Like our chimp and bonobo cousins, the others have never forgotten who they are, or how to live.  Thinking like an animal has worked perfectly for millions of years.  Thinking like a conqueror has been a disastrous failure.

Leopold, Aldo, A Sand County Almanac, Oxford University Press, New York, 1989.  [1949]

Tuesday, January 20, 2015

Mao’s War Against Nature


When I was young, I discovered pictures from China, where the streets were filled with people riding bicycles.  I was overwhelmed by this display of human intelligence.  Had they learned from our mistakes and taken a higher path, or had their culture taught them to respect life?  I was living in Kalamazoo, where the streets were a nightmare, jammed with impatient nutjobs in speeding wheelchairs.  The air was thick with methylene chloride, and the river was a PCB cesspool.  If only our leaders were Chinese… sigh!  Like I said, I was young.

In 1949, Mao Zedong led a revolution that overthrew the Chinese government.  The victors created the People’s Republic of China, a communist state.  China had suffered from a long era of exploitation by foreign powers.  Mao was eager to create a prosperous industrial utopia as rapidly as possible, by any means necessary.

In 1972, Richard Nixon visited Mao and reestablished relations between the U.S. and China.  Judith Shapiro was among the first Americans allowed to work there.  She taught English.  The outside world knew little about Red China, but Shapiro soon learned that the Maoist era had been a turbulent freak show.  She described this period in her book, Mao’s War Against Nature.

Every environmental history book is a horror story, describing how clever humans survived by using technology and aggression to devour nonrenewable resources, deplete renewable resources, ravage ecosystems, and leave the bills for their children.  Shapiro’s book stands out, because it examines an era of unbelievable ecocide.  Maoist China repeated the classic mistakes of other civilizations, but in fast forward mode.

Mao’s high-speed modernization project was called the Great Leap Forward (1958-60).  He wanted to produce more steel than Great Britain within 15 years.  Peasants rapidly constructed several million primitive backyard furnaces.  A hundred million people worked day and night melting tools, pots, and scrap into blobs of useless metal.  Most of the furnaces were wood-fired, and deforestation was widespread.  In those days, the peasants still believed the dream — that their heroic efforts would bring a new era with powerful tractors and railroads.  They worked enthusiastically.

At the same time, there was a huge drive to increase grain production via bone-headed strategies.  They were told that if they planted ten times as many seeds in a field, the yield would be ten times higher.  Sadly, the densely grown plants rotted.  But local leaders were deeply engaged in a competition to report astonishing gains in grain production, and their claims were far in excess of reality. 

Because it would have been impossible to store all the grain reported, folks were ordered to make steel.  The 1958 crop largely rotted in the fields, while the steel-making peasants consumed their grain reserves.  In 1959, drought arrived, and the Great Famine began.  Between 35 and 50 million died by 1961 — the biggest manmade famine in history.

The war on nature had another front, the Four Pests — rats, sparrows, flies, and mosquitoes.  Sparrows were an enemy of the people because they ate too much grain.  Schoolchildren ran around the countryside, destroying their nests and smashing their eggs.  They banged pots whenever a sparrow landed.  Before long, there were far fewer sparrows, and far more of the insects they used to eat.  Farmers soon realized that sparrows were great allies.  The birds were removed from the pest list, and replaced by bedbugs.

A core component of the Mao era was disregard for expertise.  Mao hated intellectuals, scientists, and anyone else who questioned his fantasies.  “Mao and his followers all too often fell into the trap of believing that because they declared something possible or true, it would be so.”  Time-proven ideas were annoying superstitions that obstructed the fast lane to utopia.  Knowledgeable people who voiced doubts about stupid ideas were promoted to exciting new careers in breaking rocks, exterminating forests, or worse.

When the president of Beijing University warned about the danger of rapid population growth, he was denounced and relieved of his responsibilities.  Overpopulation could only be a problem in evil capitalist societies — never in a socialist paradise.  China was already overpopulated in 1949, and it grew with spooky speed.  Mao refused to believe the census numbers.  In 1958, family planning programs were ended, and not resumed until 1971.  Mao died in 1976, and in 1979, the one-child policy was implemented.

When a respected engineering professor at Qinghua University warned that the planned Sanmenxia dam on the Yellow River was stupid, and would promptly fill with silt, he was denounced and relieved of his responsibilities.  The dam was built, and the reservoir filled with silt two years later, flooding a nearby town.  Mao rushed to build thousands of dams, of which 2,976 had collapsed by 1980.  Many were built with soil alone, by untrained peasants.  Floods caused by two dam failures in 1975 killed an estimated 230,000 people.

Rubber was a strategic resource, and Mao did not want to rely on imports from capitalists.  During the Cultural Revolution, hundreds of thousands of educated urban youths from bad families (i.e., intellectuals, rightists, capitalists) were shipped to the virgin rainforests north of Laos.  This region was too far north for rubber, but the experts understood it was dangerous to protest.  So, ancient forest was cleared, and planted with rubber.  Much of it died during the winter of 1974-75.  They replanted, and the trees died again.  They replanted a third time, with the same result.

Looking at this era from the outside, it’s easy to see the foolishness.  The only news the peasants got came from government sources — propaganda.  The culture had a long tradition of obedience to superiors.  Free speech and dissent were not cool.  “Political campaigns so distorted human relationships that family members were driven to denounce and beat each other, neighbors spied on neighbors, schoolchildren drove teachers to suicide, and the world was turned upside down for countless millions.”

As I read, I couldn’t help but contemplate how foolish our own culture would appear to intelligent outsiders.  How much of our news stream is truthful?  What stories are missing?  Why do we disregard the warnings of climate scientists?  How can a “well-educated” population remain so ecologically illiterate?  It’s 2015, the polar bears are dying, and the streets of Kalamazoo are still jammed with speeding wheelchairs.  Why?

The Chinese were manipulated to pursue an ideology, and the program resulted in enormous environmental harm.  It seems like consumer societies are manipulated via advertising and peer pressure to cause enormous harm via lifelong competition for status.  We must continually acquire more impressive homes, cars, televisions, and on and on.  A couple years ago, it was awesomely trendy to wear clothing printed with skull motifs.  The following year, the skulls vanished, and the trend robots rushed to fill their wardrobes with the latest new fashions.

Anyway, Shapiro’s book is stunning.  Mao is dead, and so is his ideology.  The new game is the high speed pursuit of personal wealth.  She mentions a few signs of hope, but it seems clear that the post-Mao era is causing far more environmental harm.  The population is still growing.  The pollution is horrendous.  In every nation, the war on nature is winning.  What would intelligent people do?

Shapiro, Judith, Mao’s War Against Nature, Cambridge University Press, New York, 2001.