EXTINCTION DIALOGS: HOW TO LIVE WITH DEATH IN MIND - PART VI
22. Ocean acidification leads to release of less dimethyl sulphide (DMS) by plankton. DMS shields Earth from radiation. (Nature Climate Change, online 25 August 2013). Plankton form the base of the marine food web, and are on the verge of disappearing completely, according to a paper in the 18 October 2013 issue of Global Change Biology. As with carbon dioxide, ocean acidification is occurring rapidly, according to a paper in the 26 March 2014 issue of Global Biogeochemical Cycles. Acidification is proceeding at a pace unparalleled during the last 300 million years, according to research published in the 2 March 2012 issue of Science.
23. Jellyfish have assumed a primary role in the oceans of the world (26 September 2013 issue of the New York Times Review of Books, in a review of Lisa-ann Gershwin’s book, Stung! On Jellyfish Blooms and the Future of the Ocean): “We are creating a world more like the late Precambrian than the late 1800s — a world where jellyfish ruled the seas and organisms with shells didn’t exist. We are creating a world where we humans may soon be unable to survive, or want to.” Jellyfish contribute to climate change via (1) release of carbon-rich feces and mucus used by bacteria for respiration, thereby converting bacteria into carbon dioxide factories and (2) consumption of vast numbers of copepods and other plankton.
24. Sea-level rise causes slope collapse, tsunamis, and release of methane, as reported in the September 2013 issue of Geology. In eastern Siberia, the speed of coastal erosion has nearly doubled during the last four decades as the permafrost melts.
25. Rising ocean temperatures will upset natural cycles of carbon dioxide, nitrogen and phosphorus, hence reducing plankton (Nature Climate Change, September 2013). ** Ocean warming has been profoundly underestimated since the 1970s according to a paper published in the online version of Nature Climate Change on 5 October 2014. Specifically, the upper 2,300 feet of the Southern Hemisphere’s oceans may have warmed twice as quickly after 1970 than had previously been thought. **
26. Earthquakes trigger methane release, and consequent warming of the planet triggers earthquakes, as reported by Sam Carana at the Arctic Methane Emergency Group (October 2013)
Methane Bubles Rising From Sea Floor
27. Small ponds in the Canadian Arctic are releasing far more methane than expected based on their aerial cover (PLoS ONE, November 2013). This is the first of several freshwater ecosystems releasing methane into the atmosphere, as reviewed in the 19 March 2014 issue of Nature and subsequently described by a large-scale study in the 28 April 2014 issue of Global Change Biology. Release of methane from these sources in the Arctic and Greenland, according to the 20 May 2012 issue of Nature Geoscience, “imply that in a warming climate, disintegration of permafrost, glaciers and parts of the polar ice sheets could facilitate the transient expulsion of 14C-depleted methane trapped by the cryosphere cap.”
The mechanism underlying methane release in these systems is poorly understood. If sunlight drives the process, as suggested by a paper in the 22 August 2014 issue of Science, then amplification is expected over time as ponds and lakes are increasingly exposed.
28. Mixing of the jet stream is a catalyst, too. High methane releases follow fracturing of the jet stream, accounting for a previous rise in regional temperature up to 16 C in less than 20 years (Paul Beckwith via video on 19 December 2013).
29. Research indicates that “fewer clouds form as the planet warms, meaning less sunlight is reflected back into space, driving temperatures up further still” (Nature, January 2014)
30. “Thawing permafrost promotes microbial degradation of cryo-sequestered and new carbon leading to the biogenic production of methane” (Nature Communications, February 2014)
31. Over the tropical West Pacific there is a natural, invisible hole extending over several thousand kilometers in a layer that prevents transport of most of the natural and man-made substances into the stratosphere by virtue of its chemical composition. Like in a giant elevator, many chemical compounds emitted at the ground pass thus unfiltered through this so-called “detergent layer” of the atmosphere. Global methane emissions from wetlands are currently about 165 teragrams (megatons metric) each year. This research estimates that annual emissions from these sources will increase by between 17 and 260 megatons annually. By comparison, the total annual methane emission from all sources (including the human addition) is about 600 megatons each year. (Nature Geoscience, February 2014)
32. Deep ocean currents apparently are slowing. According to one of the authors of the paper, “we’re likely going to see less uptake of human produced, or anthropogenic, heat and carbon dioxide by the ocean, making this a positive feedback loop for climate change.” Because this phenomenon contributed to cooling and sinking of the Weddell polyny, “it’s always possible that the giant polynya will manage to reappear in the next century. If it does, it will release decades-worth of heat and carbon from the deep ocean to the atmosphere in a pulse of warming.” (Nature Climate Change, February 2014; model results indicate “large spatial redistribution of ocean carbon,” as reported in theMarch 2014 issue of the Journal of Climate)
33. Increased atmospheric carbon dioxide causes soil microbes to produce more carbon dioxide (Science, 2 May 2014)
34. Reductions in seasonal ice cover in the Arctic “result in larger waves, which in turn provide a mechanism to break up sea ice and accelerate ice retreat” (Geophysical Research Letters, 5 May 2014)
35. A huge hidden network of frozen methane and methane gas, along with dozens of spectacular flares firing up from the seabed, has been detected off the North Island of New Zealand (preliminary results reported in the 12 May 2014 issue of the New Zealand Herald). The first evidence of widespread active methane seepage in the Southern Ocean, off the sub-Antarctic island of South Georgia, was subsequently reported in the 1 October 2014 issue of Earth and Planetary Science Letters.
36. As reported in the 8 June 2014 issue of Nature Geoscience, rising global temperatures could increase the amount of carbon dioxide naturally released by the world’s oceans, fueling further climate change
37. As global-average temperature increases, “the concentrations of water vapor in the troposphere will also increase in response to that warming. This moistening of the atmosphere, in turn, absorbs more heat and further raises the Earth’s temperature.” (Proceedings of the National Academy of Sciences, 28 July 2014)
38. Soil microbial communities release unexpectedly more carbon dioxide when temperatures rise (Nature, 4 September 2014). As a result, “substantial carbon stores in Arctic and boreal soils could be more vulnerable to climate warming than currently predicted.”
39. Arctic drilling was fast-tracked by the Obama administration during the summer of 2012.
40. Supertankers are taking advantage of the slushy Arctic, demonstrating that every catastrophe represents a business opportunity, as pointed out by Professor of journalism Michael I. Niman and picked up by Truth-out (ArtVoice, September 2013)
As nearly as I can distinguish, only the latter two feedback processes are reversible at a temporal scale relevant to our species. Once you pull the tab on the can of beer, there’s no keeping the carbon dioxide from bubbling up and out. These feedbacks are not additive, they are multiplicative: They not only reinforce within a feedback, the feedbacks also reinforce among themselves (as realized even by Business Insider on 3 October 2013). Now that we’ve entered the era of expensive oil, I can’t imagine we’ll voluntarily terminate the process of drilling for oil and gas in the Arctic (or anywhere else). Nor will we willingly forgo a few dollars by failing to take advantage of the long-sought Northwest Passage or make any attempt to slow economic growth.
Robin Westenra provided an assessment of these positive feedbacks at Seemorerocks on 14 July 2013.
It’s worth a look...
See How Far We’ve Come
Photo credit: USCG
Never mind that American naturalist George Perkins Marsh predicted anthropogenic climate change as a result of burning fossil fuels in 1847. Never mind the warning issued by filmmaker Frank Capra in 1958 or the one issued by Austrian philosopher Ivan Illich in his 1973 article in Le Monde: “the impact of industrially packaged quanta of energy on the social environment tends to be degrading, exhausting, and enslaving, and these effects come into play even before those which threaten the pollution of the physical environment and the extinction of the (human) race.”
Never mind the warning and plug for geo-engineering issued by U.S. President Lyndon B. Johnson’s Science Advisory Committee in 1965:
“The climate changes that may be produced by the increased CO2 content could be deleterious from the point of view of human beings. The possibilities of deliberately bringing about countervailing climatic changes therefore need to be thoroughly explored.” Never mind the 1986 warning from NASA’s Robert Watson of “human misery in a few decades” and eventual human extinction as a result of climate change. Never mind that climate risks have been underestimated for the last 20 Years, or that the IPCC’s efforts have failed miserably (David Wasdell’s scathing indictment of the vaunted Fifth Assessment is archived here.
After all, climate scientist Kevin Anderson tells us <what many have known for years>: politicians and the scientists writing official reports on climate change are lying, and we have less time than most people can imagine. Consider the example of the U.S. Environmental Protection Agency “underestimating” by 100 to 1,000 times the methane release associated with hydro-fracturing to extract natural gas, as reported in the 14 April 2014 issue of the Proceedings of the National Academy of Sciences.
Never mind David Wasdell pointed out in 2008 that we must have a period of negative radiative forcing merely to end up with a stable, non-catastrophic climate system. Never mind that even the Atlantic is displaying “five charts about climate change that should have you very, very worried.” Never mind that atmospheric carbon dioxide is affecting satellites. Never mind that even the occasional economic analyst is telling climate scientists to be persuasive, be brave, and be arrested. Never mind that Peruvian ice requiring 1,600 years to accumulate has melted in the last 25 years, according to a paper in the 4 April 2013 issue of Science. And never mind that summer warming in the interior of large continents in the northern hemisphere has outstripped model predictions in racing to 6-7 C since the last Glacial Maximum, according to a paper that tallies temperature rise in China’s interior in the 15 May 2013 issue of the Proceedings of the National Academy of Sciences.
And finally, never mind that the IPCC’s projections have been revealed as too conservative time after time, including low-balling the impact of emissions, as pointed out in the 9 March 2014 issue of Nature Climate Change. On 24 March 2014, renowned climate scientist Michael Mann commented on climate change as reported in the IPCC’s Fifth Assessment: “It’s not far-off in the future and it’s not exotic creatures — it’s us and now.” As the Fifth Assessment admits, climate change has already left its mark “on all continents and across the oceans.”
Future temperatures likely will be at the higher end of the projected range because the forecasts are all too conservative and also because climate negotiations won’t avert catastrophe.
Through late March 2013, global oceans have risen approximately ten millimeters per year during the last two years. This rate of rise is over three times the rate of sea level rise during the time of satellite-based observations from 1993 to the present. Ocean temperatures are rising, and have been impacting global fisheries for four decades,according to the 16 May 2013 issue of Nature. According to the World Meteorological Organization’s July 2014 report, the world is nearly five times as prone to disaster as it was 40 years ago. The number and economic cost of weather-related disasters has increased during each of the last four decades.
Actually, catastrophe is already here, although it’s not widely distributed in the United States. Well, not yet, even though the continental U.S. experienced its highest temperature ever in 2012, shattering the 1998 record by a full degree Fahrenheit. But the east coast of North America experienced its hottest water temperatures all the way to the bottom of the ocean. The epic dust bowl of 2012 grew and grew and grew all summer long. As pointed out in the March 2004 issue of Geophysical Research Letters, disappearing sea ice is expectedly contributing to the drying of the western United States (more definitive research on the topic appeared in the December 2005 issue of Earth Interactions). Equally expectedly, the drought arrived 40 years early.
Even James Hansen and Makiko Sato are asking whether the loss of ice on Greenland has gone exponential (while ridiculously calling for a carbon tax to “fix” the “problem”), and the tentative answer is not promising, based on very recent data, including a nearly five-fold increase in melting of Greenland’s ice since the 1990s and a stunning melting of 98 percent of Greenland’s ice surface between 8 and 15 July 2012. The explanation for this astonishing event comes from a paper published in the 10 June 2014 issue of the Proceedings of National Academy of Sciences:
“[T]he same mechanism drove two widespread melt events that occurred over 100 years apart, in 1889 and 2012. We found that black carbon from forest fires and rising temperatures combined to cause both of these events.” Further elucidation is provided in the 14 June 2014 issue of Journal of Geophysical Research: Atmospheres. The mainstream media are finally taking notice, with the 18 July 2013 issue of Washington Post reporting the ninth highest April snow cover in the northern hemisphere giving way to the third lowest snow cover on record the following month (relevant records date to 1967, and the article is headlined, “Snow and Arctic sea ice extent plummet suddenly as globe bakes”).
On a particularly dire note for humanity, climate change causes early death of 400,000 people each year causes early death of five million people each year. Adding to our misery are interactions between various aspects of environmental decay. For example, warming in the Arctic is causing the release of toxic chemicals long trapped in the region’s snow, ice, ocean and soil, according to research published in the 24 July 2011 issue of Nature Climate Change.
Greenhouse-gas emissions keep rising, and keep setting records. According to 10 June 2013 report by the International Energy Agency, the horrific trend continued in 2012, when carbon dioxide emissions set a record for the fifth consecutive year. The trend puts disaster in the cross-hairs, with the ever-conservative International Energy Agency claiming we’re headed for a temperature in excess of 5 C. The U.S. State of the Climate in 2013, published 17 July 2014 as a supplement to the July 2014 issue of the Bulletin of the American Meteorological Society, concludes:
Ocean surface continues to warm
Sea levels reach a record high
Glaciers retreat for the 24th consecutive year
Greenhouse gases continue to climb
The planet’s surface remains near its warmest
Warm days are up, cool nights are down
Completely contrary to the popular contrarian myth, global warming has accelerated, with more overall global warming in the 15 years up to March 2013 than the prior 15 years. Seventeen months later, Science finally catches up in their 22 August 2014 issue. This warming has resulted in about 90% of overall global warming going into heating the oceans, and the oceans have been warming dramatically, according to a paper published in the March 2013 issue of Geophysical Research Letters.
A paper in the 20 March 2014 issue of Environmental Research Letters points out that surface temperatures poorly measure global warming. Even Slate magazine figured it out by 5 November 2013, and The Guardian‘s headline from 13 November 2013 announces, “Global warming since 1997 more than twice as fast as previously estimated, new study shows.” About 30% of the ocean warming over the past decade has occurred in the deeper oceans below 700 meters, which is unprecedented over at least the past half century.
According to a paper in the 1 November 2013 issue of Science, the rate of warming of the Pacific Ocean during the last 60 years is 15 times faster than at any time during the last 10,000 years. By the end of 2013, the fourth-hottest year on record, the deep oceans were warming particularly rapidly and NASA and NOAA reported no pause in the long-term warming trend. “In 2013 ocean warming rapidly escalated, rising to a rate in excess of 12 Hiroshima bombs per second — over three times the recent trend.” When the heat going into the ocean begins to influence land-surface temperatures, “rapid warming is expected,” according to a paper published 9 February 2014 in Nature Climate Change. According to James Wight, writing for Skeptical Science on 12 March 2014, “Earth is gaining heat faster than ever.”
Coincident with profound ocean warming, the death spiral of Arctic sea ice is well under way, as shown in the video below. As reported in the 22 February 2014 issue ofGeophysical Research Letters, sea-surface temperatures have increased 0.5 to 1.5 C during the last decade. “The seven lowest September sea ice extents in the satellite record have all occurred in the past seven years.”
In the category of myth busting comes recent research published in the August 2013 issue of Proceedings of the National Academy of Sciences. Contrary to the notion that changing solar radiation is responsible for rising global temperature, the amount of solar radiation passing through Earth’s atmosphere and reaching the ground globally peaked in the 1930s, substantially decreased from the 1940s to the 1970s, and changed little after that. Indeed, the current solar activity cycle is the weakest in a century. In addition,according to a paper in the 22 December 2013 issue of Nature GeoScience, climate change has not been strongly influenced by variations in heat from the sun.
Global loss of sea ice matches the trend in the Arctic. It’s down, down, and down some more, with the five lowest values on record all happening in the last seven years (through 2012). As reported in a June 2013 issue of Science, the Antarctic’s ice shelves are melting from below. When interviewed for the associated article in the 13 June 2013 issue of National Geographic, scientists expressed surprise at the rate of change. Color me shocked. Three months later, the 13 September 2013 issue of Science contains another surprise for mainstream scientists: The Pine Island Glacier is melting from below as a result of warming seawater. And four months after that dire assessment, themassive glacier was melting irreversibly, according to a paper in the 12 January 2014 issue of Nature Climate Change (Robert Scribbler provides an overview of the latter phenomenon).
Then See Where We’re Going
The climate situation is much worse than I’ve led you to believe, and is accelerating far more rapidly than accounted for by models. Even the U.S. Centers for Disease Control and Prevention acknowledges, in a press release dated 6 June 2013, potentially lethal heat waves on the near horizon. Piling on a month later, the World Meteorological Organization pointed out that Earth experienced unprecedented recorded climate extremes during the decade 2001-2010, contributing to more than a 2,000 percent increase in heat-related deaths.
Although climate change’s heat — not cold — is the real killer, according to research published in the December 2013 issue of the Journal of Economic Literature, swings in temperature may be even more lethal than high temperatures. Specifically, research published in the 29 January 2014 issue of the Proceedings of the Royal Society of Londonindicates insects are particularly vulnerable to temperature swings.
Ice sheet loss continues to increase at both poles, and warming of the West Antarctic Ice Sheet is twice the earlier scientific estimate. Arctic ice at all-time low, half that of 1980, and the Arctic lost enough sea ice to cover Canada and Alaska in 2012 alone. In short, summer ice in the Arctic is nearly gone. Furthermore, the Arctic could well be free of ice by summer 2015, an event that last occurred some three million years ago, before the genus Homo walked the planet. Among the consequences of declining Arctic ice isextremes in cold weather in northern continents (thus illustrating why “climate change” is a better term than “global warming”). In a turn surprising only to mainstream climate scientists, Greenland ice is melting rapidly.
The Eemian interglacial period that began some 125,000 years ago is often used as a model for contemporary climate change. However, as pointed out in the 5 June 2012 issue of Geophysical Research Letters, the Eemian differed in essential details from modern climatic conditions. The Eemian is a poor analog for contemporary climate change, notably with respect to the rapid, ongoing disappearance of summer ice in the Arctic.
Even the conservative International Energy Agency has thrown in the towel, concluding that “renewable” energy is not keeping up with the old, dirty standard sources. As a result, the International Energy Agency report dated 17 April 2013 indicates the development of low-carbon energy is progressing too slowly to limit global warming.
The Arctic isn’t "Vegas" — what happens in the Arctic doesn’t stay in the Arctic — it is this planet’s air conditioner.
In fact, as pointed out 10 June 2013 by research scientist Charles Miller of NASA’s Jet Propulsion Laboratory: “Climate change is already happening in the Arctic, faster than its ecosystems can adapt. Looking at the Arctic is like looking at the canary in the coal mine for the entire Earth system.” In addition, “average summer temperatures in the Canadian Arctic are now at the highest they’ve been for approaching 50,000 years” (and perhaps up to 120,000 years) according to a paper published online 23 October 2013 in Geophysical Research Letters. On the topic of rapidity of change, a paper in the August 2013 issue of Ecology Letters points out that rates of projected climate change dramatically exceed past rates of climatic niche evolution among vertebrate species. In other words, vertebrates cannot evolve or adapt rapidly enough to keep up with ongoing and projected changes in climate.
How critical is Arctic ice?
Sea Ice Melting in Barentz & Kara Seas - 2012
Whereas nearly 80 calories are required to melt a gram of ice at 0 C, adding 80 calories to the same gram of water at 0 C increases its temperature to 80 C. Anthropogenic greenhouse-gas emissions add more than 2.5 trillion calories to Earth’s surface every hour (ca. 3 watts per square meter, continuously).
Interactions among feedbacks are particularly obvious in the Arctic. For example, as reported in the 5 May 2014 issue of Geophysical Research Letters, “further reductions in seasonal ice cover in the future will result in larger waves, which in turn provide a mechanism to break up sea ice and accelerate ice retreat.”
Ocean acidification associated with increased atmospheric carbon dioxide is proceeding at an unprecedented rate — the fastest in 300 million years — leading to great simplification of ecosystems, and capable of triggering mass extinction by itself. Already, half the Great Barrier Reef has died during the last three decades and the entire marine food web is threatened. As with many attributes, the Arctic Ocean leads the way in acidification. Similarly to the long lag in temperature relative to increase greenhouse gas emissions, changes in ocean acidity lag far behind alterations in atmospheric carbon dioxide, as reported in the 21 February 2014 issue of Environmental Research Letters.
An increasing number of scientists agree that warming of 4 to 6 C causes a dead planet. And, they go on to say, we’ll be there much sooner than most people realize. Clive Hamilton concludes in his April 2013 book Earthmasters that “without [atmospheric sulphates associated with industrial activity] … Earth would be an extra 1.1 C warmer.” This estimate matches that of James Hansen and colleagues, who conclude 1.2 C cooling (plus or minus 0.2 C) as a result of atmospheric particulates (full paper in the 22 December 2011 issue of Atmospheric Chemistry and Physics is here"
Both estimates are conservative relative to a paper in the 27 May 2013 issue of Journal of Geophysical Research: Atmospheres, which reports ~1 C temperature rise resulting from a 35-80% reduction in anthropogenic aerosols. In other words, collapse takes us directly to 2 C within a matter of weeks. According to a paper in the 24 November 2013 issue of Nature Climate Change, warming of the planet will continue long after emissions cease. Several other academic scientists have concluded, in the refereed journal literature no less, that the 2 C mark — long a political target, not a scientific target except among misinformed scientists — is essentially impossible (for example, see the review paper by Mark New and colleagues published in the 29 November 2010 issue of thePhilosophical Transactions of the Royal Society A and the following line from a paper in the 12 March 2014 edition of Review of European, Comparative & International Environmental Law: “countries are farther from meeting their targets and the global community is farther from reaching the goal of limiting warming to 2°C above pre-industrial levels than emissions data suggest”).
The German Institute for International and Security Affairs concluded 2 June 2013 that a 2 C rise in global-average temperature is no longer feasible (and Spiegel agrees, finally, in their 7 June 2013 issue), while the ultra-conservative International Energy Agency concludes that, “coal will nearly overtake oil as the dominant energy source by 2017 … without a major shift away from coal, average global temperatures could rise by 6 degrees Celsius by 2050, leading to devastating climate change.” At the 11:20 mark of this video, climate scientist Paul Beckwith indicates Earth could warm by 6 C within a decade. If you think his view is extreme, consider (1) the 5 C rise in global-average temperature 55 million years ago during a span of 13 years (reported in the 1 October 2013 issue of Proceedings of the National Academy of Sciences), and also (2) the reconstruction of regional and global temperature for the past 11,300 years published in Science in March 2013. One result is shown in the figure below.
It’s not merely scientists who know where we’re going. The Pentagon is bracing for public dissent over climate and energy shocks, as reported by Nafeez Ahmed in the 14 June 2013 issue of the Guardian.
According to Ahmed’s article: “Top secret US National Security Agency (NSA) documents disclosed by the Guardian have shocked the world with revelations of a comprehensive US-based surveillance system with direct access to Facebook, Apple, Google, Microsoft and other tech giants. New Zealand court records suggest that data harvested by the NSA’s Prism system has been fed into the Five Eyes intelligence alliance whose members also include the UK, Canada, Australia and New Zealand.”
In short, the “Pentagon knows that environmental, economic and other crises could provoke widespread public anger toward government and corporations” and is planning accordingly. Such “activity is linked to the last decade of US defence planning, which has been increasingly concerned by the risk of civil unrest at home triggered by catastrophic events linked to climate change, energy shocks or economic crisis — or all three.” In their 2014 Quadrennial Defense Review, the U.S. military concludes: “Climate change poses another significant challenge for the United States and the world at large. As greenhouse gas emissions increase, sea levels are rising, average global temperatures are increasing, and severe weather patterns are accelerating.”
The global police state has arrived, and its expansion is accompanied by a subtle changes in Earth’s rotation that result from the melting of glaciers and ice sheets (i.e., climate change is causing Earth’s poles to shift .
Dorsi Lynn Diaz
October 13th, 2014