Showing posts with label tipping point. Show all posts
Showing posts with label tipping point. Show all posts

Monday, August 30, 2021

Wild Free and Happy Sample 57

 

[Note: This is the fifty-seventh sample from my rough draft of a 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 happen to have some free time.  If you prefer audiobooks, Michael Dowd is in the process of reading and recording my book HERE.

[Continued from Climate Crisis 02 Sample 56]

Water and Climate

In The Great Acceleration, McNeill and Engelke described how a warming climate is disturbing the relationship between water and the family of life.  The precipitation patterns of the past are changing, creating new challenges for ecosystems, human societies, and life as we know it.

Extreme weather events are expected to occur more frequently.  When ocean surface temperatures get warmer, cyclones are more likely to be spawned.  Warmer air can hold more moisture.  In regions having a moist climate, clouds bloated with water are more likely to form.  More and more often, storms are dumping huge loads of rain, sudden deluges that cause destructive floods and landslides.  In regions having a dryer climate, warmer air will create fewer clouds, produce less rain, crank up the air temperature, intensify drought conditions, and encourage wildfires. 

With a warming climate, the glaciers of the world are melting and retreating more rapidly.  Winter precipitation is delivering more rain, less snow.  Winter rain tends to run off promptly.  Snowpack retains the moisture longer.  It melts later, closer to the growing season, when the water can be used to irrigate thirsty cropland. 

The water flowing out of the Himalayas feeds the Indus, Yangzi, Mekong, Ganges, Yellow, Brahmaputra, and Irrawaddy rivers.  Two billion people depend on this water arriving in adequate amounts, at the appropriate time.  In the coming years, more water shortages and major changes are expected.

Paul Ehrlich and John Harte wrote that a third of global crop production depends on irrigation.  Melting snow has been an essential source of irrigation water.  “The winter snowpack in mountainous regions such as the Himalayas, the Rockies, the Sierra, and the Andes is a most efficient reservoir, storing water through the cold months and releasing it gradually as snowmelt in warm months when farmers need it.”

“In response to severe and prolonged drought in many regions of the world, including China, India, Thailand, Italy, and California, loss of surface irrigation water has resulted in excessive pumping of groundwater, which in turn has led to land subsidence, groundwater depletion, and irreversible loss of aquifer volume.”  Food production is also challenged by droughts, deluges, super storms, heat waves, aggressive wildfires, declining insect pollinators, soil salinization, soil depletion, erosion, and so on.

Sahana Ghosh reported that the once mighty Ganges River is wheezing.  Over the years, river volume has been declining, because farmers have been diverting too much water via their irrigation canals.  The river got shallower.  Then, they switched to tube wells with motorized pumps.  Naturally, overpumping the groundwater has serious consequences.  In the dry months, the river now looks more like a mudflat.  Reduced flow also concentrates the load of pollutants.  Researcher Abhijit Mukherjee said, “Our prediction shows that about 115 million people can be impacted due to insufficient food availability in the next few decades.”

Jim Robbins wrote about the Colorado River blues.  The 1,450 mile (2,333 km) watershed starts in the Rocky Mountains and ends at the Pacific.  It used to empty into the Gulf of California, but not a single drop of water enters the Gulf today.  In 2018, river volume was just two-thirds of normal, tied for the record low.

The Colorado is one of the most heavily engineered waterways in the world — designed for the benefit of humans, not nature.  It is the source of much contention.  It serves 40 million people, and the number of users keeps growing.  A drought since 2000 has reduced its flow.  It is the most severe drought in 1,250 years.  The Lake Mead reservoir at Hoover Dam, and the Lake Powell reservoir at Glen Canyon Dam, are at all-time lows.

Some suspect that climate change is drying out the West.  This is not just a temporary drought, the West may actually be getting permanently dryer.  “Worst case, if the reservoirs ever hit ‘dead pool’ — when levels drop too low for water to be piped out — many people in the region could become climate refugees.”

Agriculture uses 80 percent of the Colorado’s water, cities use 10 percent.  As demand exceeds supply, some users will be cut off.  Dewatering agriculture would snuff out many farms and nearby towns.  Wildlife does not have a top priority. 

Frederick Pleitgen and team described an emerging water shortage crisis in the Middle East, caused by persistent drought and extreme heat.  Temperatures sometimes soar to life threatening levels.  Rainfall mostly evaporates.  Rivers, lakes, and wetlands are drying up.  As Iran’s once large and beautiful Lake Urmia shrinks, its water is getting too salty, so farmers are pumping groundwater for irrigation.  Aquifers are being overpumped, depleting the limited reserves.  If current trends continue, some regions will become uninhabitable.

Homes in Jordan receive some water once or twice a week.  Numerous upstream dams limit the amount of water that eventually arrives at the end of the watershed.  Israel has a huge water desalinization program that requires large amounts of fossil energy to operate, adding still more carbon into the atmosphere.

Agriculture and Climate

Every variety of plant and animal has different environmental requirements for optimal health.  They all have evolved to survive within a limited range of conditions.  Humans can’t survive extreme conditions, nor can the livestock and crops we depend on.  When reality is shifting into a new and unusual trend, the family of life will struggle, and some will blink out.  Evolution is not a speedy process. 

With regard to crop plants, important variables include temperature, sunlight hours, pH, available moisture, soil fertility, and so on.  As warming proceeds, the regions that have a tropical climate are expanding from their equatorial homeland toward the poles.  Regions that used to be temperate are getting hotter.  In the good old days, frigid winters used to provide beneficial pest control, by freezing lots of insects and other things that harmed crops and humans.  Winter precipitation was stored in ice and snow.

Brian Halweil emphasized how important a stable climate is to agriculture.  In 2003, for the first time, the potato blight fungus came to visit the town of Chacllabamba, Peru.  It almost totally destroyed their crop.  Located at an altitude of 13,000 feet (4,000 m), a cool climate had protected the potato fields for thousands of years.  No more.  Spuds had been their staple food.

Jerry Hatfield and John Prueger investigated how rising temperatures affected a variety of crop plants.  Extreme heat events may last a few days, and have a big impact.  When temperatures are outside of the ideal range, plant growth, pollination, and reproductive processes can be affected.  Pollination is especially sensitive to rising temperatures.  High temperatures during the reproductive phase of the life cycle can reduce corn yields by as much as 80 to 90 percent. 

When wheat is maturing, a frost can cause the grains to be sterile.  Too much heat can reduce the number of grains that form.  Rice is especially vulnerable to high heat during the pollination process.  For the major crops, yields are expected to decrease as global temperatures rise. 

Kimberly Cartier noted that growing conditions are getting less predictable than in the past.  Rainy seasons may be more intense than usual, or less.  Their arrival may be earlier than the ideal time, or later.  The El Niño-Southern Oscillation (ENSO) pattern is associated with precipitation patterns, and it is a well-known troublemaker.  In 1983, an unusual ENSO coincided with the largest global failure of corn (maize) crops in modern records.  ENSO can also alter wheat and soybean production on a global scale.

Mike Davis wrote about a horrific era of ENSO related droughts and famines.  In the years 1876-79 and 1896-1902 between 12.2 and 29.3 million died of famine in India.  In the Madras Deccan, “the only well-fed part of the local population were the pariah dogs, ‘fat as sheep,’ that feasted on the bodies of dead children.”  In the same period, between 19.5 and 30 million died of famine in China, and 2 million in Brazil.  Famine hit these three nations the hardest, but many other nations were also affected.  In the U.S., churches organized to send relief to hungry farmers in the Dakotas and western Kansas.

Samuel Markings wrote about the relationship between photosynthesis and temperature.  In plants, photosynthesis is the process that uses sunlight to transform water and CO2 into food (glucose) and oxygen.  Optimum temperatures range between 50 to 68°F (10 to 20°C).  Above this range, higher temperatures slow photosynthesis.  The process declines sharply when temps rise above 104°F (40°C).  When temps persist in this range, plant survival is endangered.

Abdul Wahid and team wrote an extensive report on heat tolerance in plants.  Each crop species has a threshold temperature.  If this temperature is exceeded too long, the result is heat stress — irreversible damage to plant growth and development.  Harm varies based on intensity (temperature in degrees), duration, and the rate at which the temperate rose.

Qunying Luo extensively described threshold temperatures for a number of major crop species.  At different stages of a plant’s life, they can be damaged by excess heat — leaf initiation, shoot growth, root growth, sowing to emergence, grain filling, etc.  For example, “Several studies found that temperatures of above 35°C (95°F) are lethal to maize pollen viability”

Tnau Agritech Portal published a report on the effects of high temperature on plant growth in India.  Each plant species has a thermal death point.  For many annual crops, 122°F (50°C) is fatal.  Excess heat can reduce yields, and inhibit the absorption and assimilation of nutrients.  It can cause pollen abortion, which reduces the grain set.  Even short exposure can affect the growth of shoots and roots. 

Evelyn Lamb wrote that rice provides 16 to 20 percent of the calories consumed by humankind.  Corn and wheat are similarly popular.  Thus, more than half of the calories consumed by humans are provided by rice, corn, and wheat.  Growing rice in flooded paddies produces more greenhouse gas emissions per calorie than corn or wheat, twice the emissions from wheat.

Santosh Koirala reported that most rice crops begin by transplanting young plants in flooded paddies (“puddling”).  “When rice is grown under puddled transplanted conditions, paddy soil becomes anoxic — depleted of dissolved oxygen — and then, in the absence of oxygen, microbes that break down plant matter produce methane.”  Puddling “is becoming less profitable because of the costs of labour, shortage of water, and high energy costs.”  It results in depletion of soil quality, and higher methane emissions.

 “Methane is the second major greenhouse gas, after carbon dioxide, and agriculture accounts for 40% of these greenhouse emissions.  Although farm animals are a major source, flooded rice paddies emit as much as 500 million tons, which is around 20% of total manmade emissions of this gas.”

Kritee Kritee and team noted that rice is a staple food for almost half of humankind, so it’s especially important to pay attention to its climate impacts.  Globally, one third of water used for irrigation goes to rice farming.  Rice receives one seventh of all fertilizer used.  “Methane from global rice cultivation currently accounts for one-half of all crop-related greenhouse gas emissions.”

Experts recommended that these methane emissions could be reduced by shifting from continuously flooded rice fields to intermittent flooding.  Unfortunately, the team was surprised to discover that this brilliant solution had an unintended consequence.  The emissions of nitrous oxide (N2O) tripled — a greenhouse gas that persists in the atmosphere much longer than methane.  It is an unintended consequence of using nitrogen rich fertilizer.

Janet Ranganathan and team wrote a hefty and thorough report filled with recommendations for reducing the environmental harm caused by high impact diets and overpopulation.  Consumption of animal-based foods is growing, and these foods (especially beef), result in higher emissions of greenhouse gases. 

Meat and dairy foods are not necessary for adequate nutrition, so less is better.  “Plant-based foods can be readily combined to provide the full set of essential amino acids, as with rice and beans or peanut butter and bread.”  The only essential not provided by a vegetarian diet is vitamin B12, which supplements can provide. 

Obesity is a growing trend, even among low-income people.  “Globally, there are now two-and-a-half times more overweight than undernourished people.  More than one in three adults are overweight.”  Folks around the world are overdoing the consumption of calories and protein. 

The Second State of the Carbon Cycle Report is a spellbinding 878 page report on the carbon cycle in North America.  I learned a very important fact of life:  “Globally, soils contain more than three times as much carbon as the atmosphere, and four and a half times more carbon than the world’s biota [living things]; therefore, even small changes in soil carbon stocks could lead to large changes in the atmospheric concentration of carbon dioxide (CO2).”

Carbon compounds are central to the existence of the entire family of life.  The CO2 that plants extract from the atmosphere allows them to live and grow.  Plants exhale oxygen that animals need, and animals exhale CO2 that plants need.  Soil is home to an amazing community of fantastic microbes.  Dead organic material contains carbon.  When it drops to the ground, soil microbes eagerly decompose it, and do so in a way that stabilizes the carbon, so it is more likely to be retained in the soil, rather than float away.  Soil microbes that encourage carbon retention do not enjoy unusual shifts in moisture or temperature.  They don’t enjoy deforestation, tilling, or being sprayed with farm chemicals. 

Livestock production is a significant source of greenhouse gases — CO2, methane, and nitrous oxide.  Ruminants include cattle, sheep, goats, elk, deer, bison, etc.  The digestive system in ruminants includes a process called enteric fermentation, which produces methane emissions (3% farts, 97% belches).  Poultry, hogs, and horses emit greenhouse gases in smaller volumes via different processes.  Manure stored in large quantities generates large emissions of methane.  Pools of deep shit contain little or no oxygen, so they provide ideal conditions for producing methane.

“Soils in North America have lost, on average, 20% to 75% of their original topsoil carbon with historical conversion to agriculture.”  Most of this conversion took place in the last 200 years or so.  To add insult to injury, “On a per-person basis, food loss and waste in North America is 375 to 500 kilograms per year.” (826 to 1,102 pounds)

Arctic Fires

Zombie fires were the subject of a BBC story.  They are also called overwintering fires or peat fires.  They occur in Russia, Canada, and Alaska.  In recent years, temperatures in the Arctic have been soaring, and permafrost has been thawing.  When tundra and forest lands dry out, they become prone to wildfires.  These fires can ignite ancient peat deposits beneath the surface.  Toasty peat can smolder all winter, beneath the snow cover.  When spring arrives, the snow melts, oxygen reaches the embers, and the fire can reignite.  They “come back from the dead,” hence the zombie tag. 

Alexandra Witze reported that in the summer of 2020, there were many Siberian tundra fires, and they emitted 244 megatons of CO2, a 35 percent increase over the intense 2019 fire season.  About half of the fires were burning on peat lands, the most carbon-dense ecosystems.  When shallow layers near the surface dry out, they are more susceptible to burning.  Warmer winters and springs mean the fire season starts sooner.  In the Arctic, the fire zone is moving northward, into lands that have traditionally been fire-resistant. 

Portia Kentish reported that the climate crisis is well underway in Arctic regions, causing huge and spooky impacts — a powerful warning to the rest of the world, which is not leaping to action.  During a May 2020 heat wave, locations in Siberia that are normally close to freezing had temperatures hotter than Athens or Rome.  Some Arctic permafrost is up to 80,000 years old.  When permafrost thaws, methane emissions begin.  Heat waves encourage wildfires.  They are burning peat deposits that have been building up for 15,000 years.  About half of Russia’s Arctic fires are consuming peat soil. 

Forest Impacts

We could sequester lots of CO2 by planting enormous numbers of trees.  That sounds wholesome.  Sadly, the current fad is deforestation — cutting enormous numbers of trees to grow soybeans, create livestock pastures, make charcoal, produce wood products, and clear the way for urban sprawl.

As the planet gets warmer, forests will become more vulnerable to pests and pathogens.  Droughts will become hotter, longer, and dryer.  This encourages wildfires.  Wikipedia is posting pages that, year by year, document wildfire activity in the world.  The report for the record breaking year of 2021 is [HERE].  As of August 19, fires had been reported in Algeria, South Africa, Cyprus, India, Israel, Russia, Turkey, France, Greece, Italy (10 regions), Canada, and United States (9 states), Argentina, and Australia.

Rodrigo Pérez Ortega reported that climate change is encouraging trees to grow fast and die young.  Research suggests that this may be universal, affecting almost all tree species and climates.  Based on tree ring analysis, this trend corresponds with the exponential growth of human caused CO2 emissions, as well as rising temperatures — a combo that stimulates rapid growth.  This reduces their potential for maximum long term CO2 absorption. 

Nate McDowell and team studied changing forests.  “Shifts in forest dynamics are already occurring, and the emerging pattern is that global forests are tending toward younger stands with faster turnover as old-growth forest with stable dynamics are dwindling.”  These shifts are occurring because of “anthropogenic-driven exacerbation of chronic drivers, such as rising temperature and CO2, and increasing transient disturbances, including wildfire, drought, windthrow, biotic attack, and land-use change.”  Their findings indicate that it is “highly likely that tree mortality rates will continue to increase.” 

Robert Hunziker reported on new information linking rising temperatures with the increase in tree deaths.  In the U.S., giant sequoias are dying from the top down.  In the Southwest, drought has killed hundreds of millions of trees.  In Africa, 2,000 year old baobab trees are wheezing and dying.  In Germany, dead trees are everywhere.  Dead and dying trees are more vulnerable to insects and disease.  They provide abundant fuel for forest fires.  Siberia is burning up.  “New studies show drought and heat waves will cause massive die-offs, killing most trees alive today.” 

Dahr Jamail visited Glacier National Park, home to a formerly thriving boreal forest.  A warming climate has delighted millions of hungry pine bark beetles, some of whom can now have two life cycles per year.  In the last 20 years, beetles have killed 40 million acres (16 million ha) of trees.  They kill fewer pines now, because fewer pines remain alive.  The latest serial killer is white pine blister rust, which has infected almost 85 percent of the trees in the park.

Songlin Fei and team studied how insects and diseases are hammering U.S. forests, which are now home to more than 450 nonnative tree-feeding insects and tree pathogens.  The study focused on the 15 most destructive nonnative forest pests.  It found that “41.1% of the total live forest biomass in the conterminous United States is at risk of future loss from these 15 pests.  These results indicate that forest pest invasions, driven primarily by globalization, represent a huge risk to U.S. forests and have significant impacts on carbon dynamics.” 

Peter Wohlleben shared his intimate knowledge of the trees in his beloved German forest.  Trees can’t walk, but forests are always slowly wandering.  Since the end of the last ice age, a warming climate has enabled the trees of central Europe to gradually migrate northward.  Animals and winds move seeds away from their source.  Today, the climate is warming way too fast, which presents a mortal threat to temperature sensitive species.  Human tree huggers are working to relocate and transplant as many types of trees as possible.  Assisted migration is a heroic effort to “help forests walk.”

Climate and Disease

The climate crisis is not expected to promote miraculous advances in the health of humankind.  The huge herd is moving into an era of food insecurity, power shortages, water scarcity, poor sanitation, infectious diseases, deteriorating medical care systems, and so on.  A hotter climate and extreme weather events will add to these challenges.

The Lancet’s 2020 report presented a competent 42 page discussion on the climate change impacts on health.  Warming trends are increasing the frequency and intensity of floods, drought, storms, wildfire, temperature anomalies, and food scarcity.  These changes are killing more folks in the 65+ age range.  In 2018, heat waves killed about 296,000 people.

“The climate suitability for infectious disease transmission has been growing rapidly since the 1950s.”  The dengue virus is spreading across South America.  “From 1950 to 2018, the global climate suitability for the transmission of dengue increased by 8.9% for Aedes aegypti and 15% for Aedes albopictus.  In 2015 to 2019, suitability for malaria transmission in highland areas was 38.7% higher in the African region and 149.7% higher in the Western Pacific region compared with a 1950s baseline.”

David Wallace-Wells added that malaria also thrives in hotter regions because “for every degree increase in temperature, the parasite reproduces ten times faster.”  Consequently, by 2050, up to 5.2 billion people may be infected, according to World Bank estimates.  As tropical climates move northward, so will tropical pathogens.

Tipping Points

A tipping point in an ecosystem is a threshold that, when exceeded, can lead to large changes.  Sometimes an imbalance can reach a level of intensity that triggers an irreversible cascade of events, like a chain reaction of falling dominoes.  The climate crisis is a momentous tipping point in the human saga.  Melting Arctic ice has busted loose an avalanche of devastating changes.  Clever humans, with all their gee-whiz technology, are powerless to refreeze the Arctic, halt the avalanche, put the carbon back where it came from, and make everything nice again.

Over the millennia, high impact cultures have increasingly evolved into aggressive control freaks, radically manipulating ecosystems to satisfy their impulsive whims.  They are unencumbered by foresight, and display little respect for the family of life and the generations yet to come. 

For a very long time, their enthusiastic cleverness usually didn’t slam head-on into devastating limits.  They kept nature on a short leash, and brutally abused her.  The game is different now.  We’ve created changes that threaten our survival, changes we can’t undo.  We are no longer in the driver’s seat. 

Nature has put a tight leash around our necks, and we’re about to discover what it’s like to be powerless, kicked, and beaten.  Mistakes indeed have consequences (ouch!).  Our seat in the family of life is not a throne.  We are not the Crown of Creation.  We’re often more like hyperactive children who get completely lost, confused, and anxious.

Many folks who deliberately pay acute attention to reality are totally spooked.  These hyper alert folks have developed a special ability to comprehend the obvious — we’re in the <bleeping> express lane to surprising changes.  Many of them seem to perceive tipping points to be elements of a remarkable cosmic drama.  Tipping points are fire-breathing dragons that we must heroically slay in order avert runaway warming, and a hellish ecological apocalypse called Hothouse Earth.  

The alert ones are jumping up and down and shouting about tipping points, in a desperate frantic effort to wake up the clueless billions.  Dudes!  It’s time for action!  We only have ten years to fix this mess!  It’s not too late!  The presumption is that the mess is a solvable problem.  We are heavily indoctrinated with the illusion that technology can overcome any challenge. 

At the same time, the titans of industry assure us that they are ready and eager to sell us the miracles we need: electric cars, solar panels, wind turbines — clean green energy, and a prosperous economy that will grow until the end of time!  We can simply shop our way to a better tomorrow.  Everything will be OK.  Think happy thoughts.  Hope will save the world.

Will electric cars will be so cool that the Arctic ice refreezes?  Will the glaciers rise and shine again?  Will green energy be so cool that the permafrost stops thawing, and the methane seeps go back to sleep?  Is learning how to walk as hard as they say?  To learn more about tipping points, check out Fred Pearce, Timothy Lenton, Katharyn Duffy, and Will Steffen. 

[Continued in Climate Crisis 04, Sample 58]

Saturday, July 31, 2021

Wild Free and Happy Sample 55

[Note: This is the fifty-fifth sample from my rough draft of a 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 happen to have some free time.  If you prefer audiobooks, Michael Dowd is in the process of reading and recording my book HERE.

CLIMATE CRISIS

The focus of this book is human eco-history.  Climate change has influenced our journey since day one, when our tree-dwelling ancestors had to move onto the savannah.  Today’s crisis is climate change on steroids.  It’s doing things that humans have never experienced before — countless huge, accelerating, scary, uncontrollable changes that we don’t fully comprehend.  Our beloved techno magic is incompetent to cleverly swish the bad stuff away.  Say hello to a thrilling future of big surprises.

For many folks, the climate crisis is not chasing them down the alley every day, snarling and viciously snapping at their asses.  Now and then we hear stories and see some pictures.  News sources tend to quietly step around the embarrassing subject.  Too much yucky news can make their audience uncomfortable and unfaithful.  We get some peeks at reality now and then, but most of the story remains behind closed curtains.

For many, the crisis can seem like a wee dark cloud on the distant horizon.  Day to day life in the cubicle farm, or the family room, is rarely affected.  But, if you make an effort to listen, the jungle drums are regularly talking about highly improbable flash floods, hundred year storms, persistent droughts, unprecedented heat spells, landslides, etc.  These weird stories from outer space can often seem impossible, unbelievable, and deniable.

The climate crisis is not a sudden asteroid-strike event, like the destruction of the World Trade Center towers in 2001.  It’s a vastly bigger and stronger disturbance that will eventually be affecting everyone, everything, everywhere, to a breathtaking degree, and causing much irreversible damage.  It’s the unintentional result of way too many people, living way too hard, for way too long.

Hopium addicts jabber about “solving” the climate crisis, and looking forward to a sustainable green future.  There is nothing that the magicians of technology cannot fix.  Hope fiends have blind faith that “it’s not too late.”  Buy an electric car, put solar panels on your roof, shop like there’s no tomorrow, and enjoy a long and fabulous life. 

The dreamy perceptions of these hope fiends reflects a deficit of understanding, in combination with the Tinker Bell Effect.  In the Peter Pan story, Tinker Bell is the fluttering fairy of magical thinking, “Just think a happy thought and you can fly!”  Albert Bartlett was amused by the popular fantasy that if you called something “sustainable” enough times, then <shazaam!> it was!

Megan Seibert and William Rees did an excellent job of explaining why sustainable alternative energy visions are neither sustainable nor possible.  Their report describes why “the pat notion of ‘affordable clean energy’ views the world through a narrow keyhole that is blind to innumerable economic, ecological, and social costs.”  Alice Friedemann examined the alternative energy options, and described why none of them were an effective or realistic solution.

In addition to the hopium addicts are the shameless bullshit hucksters.  They are supported by wealthy interests that want to keep the planet-thrashing status quo on life support ventilators for as long as humanly possible.  Their cash cows produce generous profits, but exist at the expense of the family of life.  Bullshit artists have been highly successful at sowing the seeds of doubt.  Climate change is a hoax promoted by devil worshippers!  We’re regularly splattered with a firehose of deliberate misinformation.

The unfortunate reality is that 7.8 billion people cannot simply think a happy thought and become ecologically harmless.  Climate change is the stinky steaming 100 ton turd in the swimming pool.  It horrifies us, because it rubbishes our fantasies of human supremacy, endless progress, and the best is yet to come.  It makes our beloved “high standard of living” look like an insanely stupid hallucination (which it is) — a reckless high speed joyride that leaves the planet in ruins.

The climate crisis is an enormous fast-moving subject that is generating a staggering amount of articles, reports, books, and videos.  The future has yet to be written, but a number of current trends have a clear trajectory — warming climate, melting ice, thawing permafrost, rising seas, extreme weather events, etc.  I’m not going to play the prophet game, but I do feel obligated to point out some critical climate-oriented trends that obviously appear to be on a treacherous path. 

The information on the following pages is a very rough sketch, like a cop’s bodycam video of a chaotic crime scene.  It’s written at one moment in time, from one perspective, and is far from complete.  My plan here is to present a sampler of core ideas, and toss in links to interesting sources.  Readers who want to further explore the issue can follow the links, and feed their hungry brains. 

Albedo

When incoming sunbeams hit white regions of ice and snow, some of the heat is reflected away from the planet, back into outer space.  This ability to reflect is called albedo.  Fresh snow, which is very white, reflects 80 to 90 percent of incoming heat.  So, it has an albedo of 0.8 to 0.9.  Ice that has been bare for a while accumulates soot and dust, which makes it darker, less reflective.  It has an albedo of 0.4 to 0.7.  Sea water and dry land are darker, absorb more incoming heat, and then radiate it.  Open water has an albedo of 0.1. 

When albedo reflectivity is diminished, more heat can enter the atmosphere and accumulate.  Ice gets thinner, breaks up, and retreats.  Then, more solar heat can hit more open water or bare ground.  More of the thick ice that used to exist year-round now melts away during the warmer months.  The duration of ice-free summer periods is lengthening.  This pattern is called a positive feedback loop — more warmth, more melting, more warmth, etc….  It’s the engine of runaway warming, the arctic death spiral.

Arctic Ice

In 1968, the Apollo-8 mission orbited the moon, and took the first photo of the Earth rising above the moon’s horizon.  In that photo, Earth was white around both the north and south poles.  Today, when it’s summer in the Northern Hemisphere, the view from outer space shows a white Antarctic, and a blue Arctic.  As it melts, the ancient northern ice sheet is gradually becoming an open ocean.  With a stampede of well-intended, highly-destructive booboos, human cleverness and runaway warming are changing the planet, and the future.

Peter Wadhams has been studying Arctic ice for 50 years.  He has a way-above-average understanding of the danger we’re in.  He’s been working hard to alert us, but not many are getting the message.  Arctic ice is extremely precious, because it’s essential for maintaining vital climate balances.  Its cool temperature, and highly reflective whiteness, have enabled the existence of life as we know it. 

Over the last 70,000 years, climate trends have typically been a zigzag pattern of frequent erratic swings, hot-cold-hot-cold….  Today, we are living in the rear end of an 11,700 year era of unusually stabile warm temperatures — a weird deviation that enabled the emergence of fairly reliable agriculture, and allowed 7.8 billion people to survive at the same time (temporarily).  The long-term trends imply that we’re long overdue for a new ice age.  Fat chance!  Instead, we’re speeding out of control down the hot lane.

The planet is sliding down the path to a largely ice-free Arctic.  A few decades ago, the North Pole as covered with ice 10 to 12 feet thick.  No more.  “With the steady disappearance of polar ice cover, we are losing a vast air conditioning system that stabilized the climate for thousands of years.”  We have been living in “the Goldilocks climate” — not too hot, not too cold, just right!  That pattern has been disrupted by rapidly overloading the atmosphere with ancient carbon.

Wadhams lamented, “We are fast approaching the stage when climate change will be playing the tune for us while we stand by and watch helplessly, with our reductions in CO2 emissions having no effect.”  In 2016, he wrote a short and easy to understand summary of his findings, with excellent illustrations.  I strongly recommend checking it out [HERE].  YouTube also has many Wadhams videos.

Morgan McFall-Johnsen described the rapid melting of Greenland’s ice in 2019.  That year, in just five days, 55 billion tons of melt water rushed out of Greenland’s ice sheet, “enough to cover the state of Florida in almost 5 inches of water.”  In their most pessimistic scenario, scientists had predicted that this level of melting would not be reached until 2070.  We did it 50 years ahead of schedule!  “The Arctic is warming almost twice as quickly as the global average.”    The times are changing.  Trouble ahead. 

Greenhouse Gases

Under normal natural conditions, CO2 is precious.  If there was no CO2, there would be no plants or animals.  During photosynthesis, plants take in CO2 and emit oxygen.  At the same time, animals breathe in oxygen and exhale CO2.  It’s a harmonious circle dance, normally.  But the balance gets blasted when we extract millions of years of ancient carbon from deep underground, burn it, and totally overload the atmosphere.

The atmosphere is also precious.  It allows incoming solar heat to pass through, and warm the planet below, which enables the survival of the family of life.  It also allows some heat to escape back into outer space, but not as much as it lets in.  So, the atmosphere acts like a comfortable greenhouse.  Wadhams noted that if Earth had no atmosphere, it would be a lifeless frozen planet.  The moon is a frigid place because it has no atmosphere, and its average temperature is -4°F (-18°C).  Earth’s lovely atmosphere enables an average temperature of 59°F (15°C).

There are several compounds that help the greenhouse maintain a happy climate.  In normal times, the greenhouse is wonderful magic act.  In crazy times, greenhouse gas overloads can disrupt the global party.  The four main greenhouse gases are carbon dioxide (CO2) methane (CH4), nitrous oxide (N2O), and water vapor (H2O).  CO2 is responsible for maybe 55 percent of the current imbalance.  In preindustrial times, CO2 levels in the atmosphere were 280 ppm (parts per million).  In 2021 they reached 420 ppm — estimated to be the highest concentration in more than 3 million years (or 4 million, or 15 million).

Methane levels are also soaring, from preindustrial 700 ppb (parts per billion) to around 2,000 ppb in 2019.  Methane remains in the atmosphere for 7 to 10 years, during which its impact can be 100 to 200 times worse than CO2.  Then, it breaks down into CO2, which can remain in the atmosphere much longer.  When methane’s brief existence is calculated within a hundred year timeframe, its impact is 23 times worse than the hundred year impact of CO2

Nitrous oxide is a minor offender, found at about 300 ppb in the atmosphere, where it can remain for 120 years.  Its source is primarily synthetic nitrogen fertilizers. 

Water vapor can act like an insulating blanket.  As the Arctic warms, its air can hold more moisture, and a layer of water vapor (clouds) helps to retain warm air.

The bottom line here is that manmade carbon emissions have been working hard to turn the delightful greenhouse into an overheated hothouse.  Too much heat is being retained in the atmosphere, frigid regions are melting, and a slippery hideous crisis has popped out of the womb screaming.

The good news here is that we are beginning to learn a very important lesson.  Mistakes can be fabulous teachers.  The bad news is that we are learning this at a time when a growing number of experts believe that the crisis is already past the point of no return, off the leash, sprinting away, disregarding our frantic commands.  Far too late, the wizards have discovered that the unusually warm and stable climate that we used to enjoy was possible because of a priceless treasure of snow and ice, which is now riding off into the sunset. 

Clouds

Fred Pearce described how clouds also play a role in the greenhouse magic act.  When the sun is shining, bright clouds can reflect away 30 to 60 percent of incoming solar heat.  Over the seas, stratus and stratocumulus clouds shade the ocean, so less heat is absorbed by the water.  During the day, low clouds provide cooling shade, but after sunset they become a heat retaining blanket. 

Whether clouds make shade or trap heat “depends on how reflective they are, how high they are, and whether it is day or night.”  Until recently, experts believed that the conflicting effects of clouds were about equal, so they balanced out.  That belief is going extinct.

Satellite data from NASA indicates that since 2013, cloud cover over the oceans has declined, at the same time that global average temperatures have risen sharply.  Other studies indicate that in warmer years, there are fewer low-level clouds in the tropics.  This indicates that in a warming climate, clouds are expected to get thinner, completely burn off, or not form at all.  This would lead to even higher temperatures, and faster global warming — a positive feedback loop of more heat, less clouds, more heat….

Pearce wrote, “Recent climate models project that a doubling of atmospheric CO2 above pre-industrial levels could cause temperatures to soar far above previous estimates.”  In pre-industrial times, CO2 levels in the atmosphere were 280 ppm.  Double that would be 560 ppm.  In 2021 they reached 420 ppm.  The higher they go, the hotter it gets, the fewer the clouds….

Carbon Emissions Skyrocket

As described in earlier chapters, our ancestors began acting like odd animals long, long ago.  Our quirky path picked up momentum with fire making, the domestication of plants and animals, and the emergence of civilization.  The turbo thrusters ignited with the arrival of the Industrial Revolution, when we plunged headlong into the brave new world of fossil energy.  With this shift, more and more carbon was emitted by human activity, and absorbed by the oceans, atmosphere, and greenery.

The twentieth century was radically different from all previous time.  Foolishly raiding a massive 500 million year treasure chest of highly potent energy enabled the rapid development of countless planet-thrashing technologies.  Unencumbered by foresight, dangerously clever humans looted the ancient hydrocarbon cemeteries, hauled much of the buried treasure into the daylight world, and burned it — to enjoy a brief, fantastically ridiculous, explosion of childish decadence.

In 2000, environmental historian J. R. McNeill wrote an eco-obituary for the twentieth century, Something New Under the Sun.  This book revealed the nightmares that exploded during that century from hell.  Later, as the years clicked past, McNeill realized that his book did not say enough.  The years following World War II were so spectacularly insane that they made the first 45 years of the century look somewhat wholesome.

So, in 2014, McNeill and Peter Engelke published The Great Acceleration, which focused on the era after 1945, when the poop slammed hard into the fan.  This era was the freak show in which I have spent my life’s journey, the freak show when the human population more than tripled, the freak show that the living generation perceives to be the normal way of life.

They wrote that in 1750, when the Industrial Revolution was still in diapers, 3 million tons of carbon were released into the atmosphere each year.  By 1850, emissions soared to 50 million tons.  It was 1,200 million tons in 1950, 4,000 million in 1970, and 9,500 million by 2015.  How smart was that? 

Steven Koonin noted that of the CO2 we emit today, between 30 and 55 percent will still be in the atmosphere 100 years from now, and between 15 and 30 percent will remain for 1,000 years.  It does not promptly dissipate, so ongoing emissions ratchet up the concentration in the atmosphere.  Reducing emissions only slows the increase.  The gearshift has no reverse.

Each year, about 37 billion tons of CO2 are emitted.  At this rate, the concentration in the atmosphere would increase by about 2 ppm in a year.  Year after year, more is added.  A portion of these emissions remain in the atmosphere for centuries, so their concentration continuously grows.  The current trajectory of greenhouse gas emissions is on a path to double by 2075.  

Billions continue living like its 1999.  Ignorance is bliss.  John Gowdy concluded, “The effects of fossil fuel burning are irreversible on a time scale relevant to humans.”  We’ve started something we cannot stop. 

Terrestrial Permafrost

Peter Wadhams noted that permafrost is buried under dry land across the Arctic, spread across an area of 7.3 million square miles (19 million km2), something like the combined land area of Russia and Argentina.  As Arctic temperatures soar, the permafrost is rapidly thawing (it does not “melt”).  Soils in this permafrost contain lots of organic carbon, plant material that lived in ages past, but froze before fully decomposing.  Unlike offshore (sea bottom) permafrost, terrestrial permafrost does not contain frozen methane.  But when it thaws and decays, microbial life can then create and emit CO2, methane, and nitrous oxide. 

Susan Natali, an Arctic ecologist, studies permafrost, climate change, and greenhouse gases.  In the Northern Hemisphere, about 25 percent of the land area sits above permafrost, a layer of frozen soil, rocks, water, and organic material.  Some of it has been frozen for up to 40,000 years.  Permafrost contains about 1,500 billion tons of carbon — twice as much as the carbon already in the atmosphere, and three times as much as the carbon stored in the world’s forest biomass.

Temperatures in the Arctic are rising twice as fast as they are in the rest of the world, a trend likely to continue indefinitely.  This warming is thawing the upper layers of permafrost.  “Not all of the carbon that’s in permafrost will be released.  Our current expectations is about 10 to 15 percent of that carbon will be released into the atmosphere.  That said, if all of the carbon of permafrost was released, at that point, this is not going to be a habitable planet for humans.”

Craig Welch also commented on the daunting speed at which Arctic permafrost is thawing.  Until recently, scientists expected the rate of thawing to be gradual.  Reality disagrees.  When forest soils thaw and soften, trees get wobbly as root systems destabilize.  These “drunken trees” will eventually fall down.  When frozen slopes thaw, landslides happen, exposing the bones of mammoths and other ancient critters. 

Abrupt thaw increases the number of massive ground slumps.  These depressions collect melt water and rain, creating new ponds and lakes.  Bubbles of methane and CO2 rise up out of the mud beneath the water.  As the climate warms, and Arctic lakes grow in size and number, greenhouse gas emissions from permafrost could triple.

Ed Struzik notes that permafrost consists of up to 80 percent frozen water.  When permafrost thaws, the land can turn to mud.  Craters up to the size of football stadiums are forming in the tundra, as the land sinks.  The Batagaika Crater in the Yana River Basin of Siberia is 0.6 miles (1 km) long, and 109 yards (100 m) deep.  These thaw slumps or landslides are increasing.  Stream flows are changing, and seashores are collapsing.  In the Northwest Territories, when a rapidly thawing cliff bordering the shores of a tundra lake collapsed, the 800,000 gallon lake drained in two hours.  In the Mackenzie River Delta, up to 15,000 of the 45,000 lakes are expected to dry up. 

With warming, willows and shrubs are now displacing tundra vegetation, which includes cranberries, blueberries, cloudberries, shrubs, sedges, and lichen.  This is affecting wildlife.  In 2006, there were 3,000 caribou on the Tuktoyaktuk Peninsula, now there are half as many.  They have less lichen to eat.  Musk oxen in Canada and reindeer in Siberia seem to be dying from ancient pathogens that are coming back to life. 

The U.S. Geological Survey wrote an excellent 68 page report on thermokarst.  This is a fairly new landform in the Northern Hemisphere that has come into existence since the 1980s.  Thermokarst is created as permafrost thaws, and the land surface changes in 23 different ways.  Common characteristics include lakes, sinkholes, pits, landslides, collapsed pingos, etc.  (See Wikipedia’s thermokarst page for breathtaking photos of massive permafrost melting.)

Louise Farquharson and team studied thermokarst development in the Canadian High Arctic.  They studied land that had been frozen for thousands of years.  Until recently, the buried permafrost had been in equilibrium with the climate.  They were surprised to find that, thanks to rising temperatures, permafrost thawing was reaching depths that were not predicted for another 70 years.  “Our data show that very cold permafrost (<10°C) at high latitudes is highly vulnerable to rapid nearsurface permafrost degradation due to climate change.”

Dahr Jamail is a nomadic journalist who writes powerful stories from the front lines of the climate blitzkrieg.  He visited the Inupiat village of Utqiagvik, Alaska.  The original village is collapsing into the sea, because the solid permafrost it was built on thawed and turned to pudding.  The new village is also destined to tumble into the sea.  Polar bears are gone.

A gravedigger said that in the past, solid permafrost was close to the surface.  It used to take three days of chopping to dig a grave.  Now it takes five hours.  “Roads, railroads, oil and gas infrastructure, airports, seaports, all these things were built across the Arctic on the assumption that the permafrost would stay frozen.”  Ooops!

Offshore Permafrost

In addition to terrestrial permafrost, there is also offshore permafrost, which lies beneath seabed sediments.  It originally formed under dry land thousands of years ago, when sea levels were much lower.  Offshore is what gives Peter Wadhams screaming nightmares.  It contains substantial amounts of methane hydrates (also called methane clathrates), and it is especially vulnerable to thawing as sea ice retreats, and water temperatures rise. 

Methane hydrates are frozen crystals of methane that will melt and burn when close to a flame.  They look like ice.  An estimated 10,400 gigatons of methane are stored in hydrate deposits.  When hydrate crystals melt, the methane is released.  In the entire Arctic Ocean, the hydrate deposits are estimated to contain 13 times the amount of carbon currently present in the atmosphere. 

Wadhams is especially focused on the East Siberian Arctic Shelf.  In the East Siberian Sea, this shelf consists of 810,000 square miles (2.1 million km2) of shallow water, of which 75 percent is less than 130 feet (40 m) deep.  In the good old days, the entire sea used to be covered year round with surface ice, which kept the water frigid or frozen.  This changed in 2005, when summer sea ice began disappearing, exposing seawater to the atmosphere.  Sunlight could now penetrate directly into the water and warm it.  Shallow waters warm faster than deeper areas.

For the first time in tens of thousands of years, warmer water could reach shallow regions of the seabed, causing permafrost to thaw.  As permafrost thawed, the frozen methane hydrates began melting, releasing plumes of methane bubbles.  In waters deeper than 330 feet (100 m), the methane oxidizes while rising, and the plume disappears before reaching the surface.  In the shallows, bubble plumes make it to the surface, and methane is released into the atmosphere. 

In a 2016 article, Wadhams described the possibility of a sudden catastrophic methane release from the East Siberian Sea.  Researchers “fear that a pulse of up to 50 gigatons of methane — some 8 percent of the estimated stock in the Arctic sediments — could be released within a very few years, starting soon.”  This would generate a surge of warming.  Russian scientists on site calculate that the probability of this is at least 50 percent.

[To be continued.  This chapter will contain 3 or 4 more segments.]