Climate-change summary and update Sun, Jan 6, - TopicsExpress



          

Climate-change summary and update Sun, Jan 6, 2013Uncategorized Updated frequently, and most recently 20 August 2014. ** Latest additions are flagged with two asterisks on each side. ** I’m often accused of cherry picking the information in this ever-growing essay. I plead guilty, and explain myself in this essay posted 30 January 2014. My critics tend to focus on me and my lack of standing in the scientific community, to which I respond with the words of John W. Farley: “The scientific case is not dependent on citation of authority, no matter how distinguished the authority may be. The case is dependent upon experimental evidence, logic, and reason.” In other words, stop targeting the messenger. A German-language version of this essay, updated 26 June 2014, is available in pdf form here. A Russian version focused on self-reinforcing feedback loops, courtesy of Robin Westenra and colleagues, is here. A Polish version, updated often, is available here. American actress Lily Tomlin is credited with the expression, “No matter how cynical you become, it’s never enough to keep up.” With respect to climate science, my own efforts to stay abreast are blown away every week by new data, models, and assessments. It seems no matter how dire the situation becomes, it only gets worse when I check the latest reports. The response of politicians, heads of non-governmental organizations, and corporate leaders remains the same. They’re mired in the dank Swamp of Nothingness. As Halldor Thorgeirsson, a senior director with the United Nations Framework Convention on Climate Change, said on 17 September 2013: “We are failing as an international community. We are not on track.” These are the people who know about, and presumably could do something about, our ongoing race to disaster (if only to sound the alarm). Tomlin’s line is never more germane than when thinking about their pursuit of a buck at the expense of life on Earth. Worse than the aforementioned trolls are the media. Fully captured by corporations and the corporate states, the media continue to dance around the issue of climate change. Occasionally a forthright piece is published, but it generally points in the wrong direction, such as suggesting climate scientists and activists be killed (e.g., James Delingpole’s 7 April 2013 hate-filled article in the Telegraph). Leading mainstream outlets routinely mislead the public. Mainstream scientists minimize the message at every turn, with expected results. As we’ve known for years, scientists almost invariably underplay climate impacts (James Hansen referred to the phenomenon at “scientific reticence” in his 24 May 2007 paper about sea-level rise in Environmental Research Letters. And in some cases, scientists are aggressively muzzled by their governments. Even museums are not safe from misinformation about climate science to appease fossil-fuel philanthropists, as reported in the 17 June 2014 issue of AlterNet. I’m not implying conspiracy among scientists. Science selects for conservatism. Academia selects for extreme conservatism. These folks are loathe to risk drawing undue attention to themselves by pointing out there might be a threat to civilization. Never mind the near-term threat to our entire species (most couldn’t care less about other species). If the truth is dire, they can find another, not-so-dire version. The concept is supported by an article in the February 2013 issue of Global Environmental Change pointing out that climate-change scientists routinely underestimate impacts “by erring on the side of least drama” (also see overviews of this phenomenon from 21 May 2014 and from 15 July 2014, the latter from the U.S. National Research Council as reported by Truth-out). Even the often-conservative Robert Scribbler points out in his 18 July 2014 essay: “NASA’s CARVE study has been silent for a year, the University of Maryland has stopped putting out publicly available AIRS methane data measures, the NOAA ESRL methane flask measures, possibly due to lack of funding, haven’t updated since mid-May, and even Gavin Schmidt over at NASA GISS appears to have become somewhat mum on a subject that, of late, has generated so much uncomfortable controversy.” (Apocalypse 4 Real blog responded to Scribbler on 24 July 2014, and the response is linked here.) Almost everybody reading these words has a vested interest in not wanting to think about climate change, which helps explain why the climate-change deniers have won. Beyond Linear Change I’m often told Earth can’t possibly be responsive enough to climate change to make any difference to us. But, as the 27 May 2014 headline at Skeptical Science points out, “Rapid climate changes more deadly than asteroid impacts in Earth’s past.” That’s correct: climate change is more deadly than asteroids. Ever late to the party, the Intergovernmental Panel on Climate Change (IPCC) admits global warming is irreversible without geoengineering in a report released 27 September 2013. On 22 April 2014, Truth-out correctly headlines their assessment, “Intergovernmental Climate Report Leaves Hopes Hanging on Fantasy Technology.” Time follows up two days later with a desperate headline, “NASA Chief: Humanity’s Future Depends On Mission To Mars” (first up: greenhouses on Mars). As pointed out in the 5 December 2013 issue of Earth System Dynamics, known strategies for geoengineering are unlikely to succeed (“climate geo-engineering cannot simply be used to undo global warming“). “Attempts to reverse the impacts of global warming by injecting reflective particles into the stratosphere could make matters worse,” according to research published in the 8 January 2014 issue of Environmental Research Letters. In addition, as described in the December 2013 issue of Journal of Geophysical Research: Atmospheres, geoengineering may succeed in cooling the Earth, it would also disrupt precipitation patterns around the world. Furthermore, “risk of abrupt and dangerous warming is inherent to the large-scale implementation of SRM” (solar radiation management), as pointed out in the 17 February 2014 issue of Environmental Research Letters. About a week later comes this line from research published in the 25 February 2014 issue of Nature Communication: “schemes to minimize the havoc caused by global warming by purposefully manipulating Earth’s climate are likely to either be relatively useless or actually make things worse.” Finally, in a blow to technocrats published online in the 25 June 2014 issue of Nature Climate Change, a large and distinguished group of international researchers concludes geo-engineering will not stop climate change. As it turns out, the public isn’t impressed, either: Research published in the 12 January 2014 issue of Nature Climate Change “reveals that the overall public evaluation of climate engineering is negative.” Despite pervasive American ignorance about science, the public correctly interprets geo-engineering in the same light as the scientists, and contrary to the techno-optimists. The IPCC operates with a very conservative process and produces very conservative reports. And then governments of the world meddle with the reports to ensure Pollyanna outcomes, as reported by a participant in the process (also see Nafeez Ahmed’s 14 May 2014 report in the Guardian and the 3 July 2014 paper in National Geographic). According to David Wasdell’s May 2014 analysis, which includes a critique of the IPCC’s ongoing lunacy, “equilibrium temperature increase predicted as a result of current concentration of atmospheric greenhouse gasses is already over 5°C.” I see no way for humans to survive such a rise in global-average temperature. Gradual change is not guaranteed, as pointed out by the U.S. National Academy of Sciences in December 2013: “The history of climate on the planet — as read in archives such as tree rings, ocean sediments, and ice cores — is punctuated with large changes that occurred rapidly, over the course of decades to as little as a few years.” The December 2013 report echoes one from Wood Hole Oceanographic Institution more than a decade earlier. Writing for the 3 September 2012 issue of Global Policy, Michael Jennings concludes that “a suite of amplifying feedback mechanisms, such as massive methane leaks from the sub-sea Arctic Ocean, have engaged and are probably unstoppable.” During a follow-up interview with Alex Smith on Radio Ecoshock, Jennings admits that “Earth’s climate is already beyond the worst scenarios.” Truth-out piles on 18 March 2014: “‘climate change’” is not the most critical issue facing society today; abrupt climate change is.” Skeptical Science finally catches up to reality on 2 April 2014 with an essay titled, “Alarming new study makes today’s climate change more comparable to Earth’s worst mass extinction.” The conclusion from this conservative source: “Until recently the scale of the Permian Mass Extinction was seen as just too massive, its duration far too long, and dating too imprecise for a sensible comparison to be made with today’s climate change. No longer.” ** And, finally, the Brisbane Times catches up with abrupt climate change on 18 August 2014: “Let us be clear: if these methane escapes continue to grow, the risk is they could drive the planet into accelerated or ‘runaway’ global warming. The last time this happened, 50 million years ago, global temperatures rose by an estimated 9 or 10 degrees. In the present context, that would mean the end of the world’s food supply.” ** As reported by Robert Scribbler on 22 May 2014, “global sea surface temperature anomalies spiked to an amazing +1.25 degrees Celsius above the, already warmer than normal, 1979 to 2000 average. This departure is about 1.7 degrees C above 1880 levels — an extraordinary reading that signals the world may well be entering a rapid warming phase.” Not to be outdone, now that abrupt climate change has entered the scientific lexicon, is dire news published in the 25 July 2014 issue of Science. “The study found that synchronization of the two regional systems began as climate was gradually warming. After synchronization, the researchers detected wild variability that amplified the changes and accelerated into an abrupt warming event of several degrees within a few decades.” Global-average temperature rising “several degrees within a few decades” seems problematic to me, and to anybody else with a biological bent. ** As reported eight days later in Nature Climate Change, rapid warming of the Atlantic Ocean, likely caused by global warming, has turbocharged Pacific Equatorial trade winds. Currently the winds are at a level never before seen on observed records, which extend back to the 1860s. When this phenomenon ceases, likely rapid changes will include a sudden acceleration of global average surface temperatures. ** Extinction Overview If you’re too busy to read the evidence presented below, here’s the bottom line: On a planet 4 C hotter than baseline, all we can prepare for is human extinction (from Oliver Tickell’s 2008 synthesis in the Guardian). Tickell is taking a conservative approach, considering humans have not been present at 3.5 C above baseline (i.e., the beginning of the Industrial Revolution, commonly accepted as 1750). I cannot imagine a scenario involving a rapid rise in global-average temperature and also habitat for humans. Neither can Australian climate scientist Clive Hamilton, based on his 17 June 2014 response to Andrew Revkin’s fantasy-based hopium. According to the World Bank’s 2012 report, “Turn down the heat: why a 4°C warmer world must be avoided” and an informed assessment of “BP Energy Outlook 2030” put together by Barry Saxifrage for the Vancouver Observer, our path leads directly to the 4 C mark. The conservative International Energy Agency throws in the towel on avoiding 4 C in this video from June 2014 (check the 25-minute mark). The 19th Conference of the Parties of the UN Framework Convention on Climate Change (COP 19), held in November 2013 in Warsaw, Poland, was warned by professor of climatology Mark Maslin: “We are already planning for a 4°C world because that is where we are heading. I do not know of any scientists who do not believe that.” Adding to planetary misery is a paper in the 16 December 2013 issue of the Proceedings of the National Academy of Sciences concluding that 4 C terminates the ability of Earth’s vegetation to sequester atmospheric carbon dioxide. I’m not sure what it means to plan for 4 C (aka extinction). I’m not impressed that civilized scientists claim to be planning for it, either. But I know we’re human animals, and I know animals require habitat to survive. When there is no ability to grow food or secure water, humans will exit the planetary stage. According to Colin Goldblatt, author of a paper published online in the 28 July 2013 issue of Nature Geoscience, “The runaway greenhouse may be much easier to initiate than previously thought.” Furthermore, as pointed out in the 1 August 2013 issue of Science, in the near term Earth’s climate will change orders of magnitude faster than at any time during the last 65 million years. Tack on, without the large and growing number of self-reinforcing feedback loops we’ve triggered recently, the 5 C rise in global-average temperature 55 million years ago during a span of 13 years, and it looks like trouble ahead for the wise ape. This conclusion ignores the long-lasting, incredibly powerful greenhouse gas discovered 9 December 2013 by University of Toronto researchers: Perfluorotributylamine (PFTBA) is 7,100 times more powerful than carbon dioxide as a greenhouse gas in the atmosphere, and it persists hundreds of years in the atmosphere. It also ignores the irreversible nature of climate change: Earth’s atmosphere will harbor, at minimum, the current warming potential of atmospheric carbon dioxide concentration for at least the next 1,000 years, as indicated in the 28 January 2009 issue of the Proceedings of the National Academy of Sciences. Finally, far too late, the New Yorker posits a relevant question on 5 November 2013: Is It Too Late to Prepare for Climate Change? Joining the too-little, too-late gang, the Geological Society of London points out on 10 December 2013 that Earth’s climate could be twice as sensitive to atmospheric carbon as previously believed. New Scientist piles on in March 2014, pointing out that planetary warming is far more sensitive to atmospheric carbon dioxide concentration than indicated by past reports. As usual and expected, carbon dioxide emissions set a record again in 2013, the fifth-warming year on record and the second-warmest year without an El Nino. Another El Niño is on the way, as pointed out by Robert Scribbler on 6 March 2014: “Should the predicted El Nino emerge and be as strong as average model values indicate, global surface temperatures could rise by between .05 and .15 degrees Celsius …. This would be a substantial jump for a single year, resulting in yet one more large shift toward an ever more extreme climate.” Indeed, the upper end of the projected range takes us to 1 C warmer than baseline. Is There a Way Out? All of the above information fails to include the excellent work by Tim Garrett, which points out that only complete collapse avoids runaway greenhouse. Garrett reached the conclusion in a paper submitted in 2007 (personal communication) and published online by Climatic Change in November 2009 (outcry from civilized scientists delayed formal publication until February 2011). The paper remains largely ignored by the scientific community, having been cited fewer than thirty times since its publication. According to Yvo de Boer, who was executive secretary of the United Nations Framework Convention on Climate Change in 2009, when attempts to reach a deal at a summit in Copenhagen crumbled with a rift between industrialized and developing nations, “the only way that a 2015 agreement can achieve a 2-degree goal is to shut down the whole global economy.” Politicians finally have caught up with Tim Garrett’s excellent paper in Climatic Change. Writing for the Arctic News Group, John Davies concludes: “The world is probably at the start of a runaway Greenhouse Event which will end most human life on Earth before 2040.” He considers only atmospheric carbon dioxide concentration, not the many self-reinforcing feedback loops described below. Writing on 28 November 2013 and tacking on only one feedback loop — methane release from the Arctic Ocean — Sam Carana expects global temperature anomalies up to 20 C 2050 (an anomaly is an aberration, or deviation from long-term average). Small wonder atmospheric methane can cause such global catastrophe considering its dramatic rise during the last few years, as elucidated by Carana on 5 December 2013 in the figure below. Atmospheric methane and other GHG through November 2013 Tipped Over On the topic of tipping points, we crossed the Rubicon in 2007 at about 0.76 C warming. At this point, according to David Spratt’s excellent September 2013 report, “Is Climate Already Dangerous?”, not only had Arctic sea-ice passed its tipping point, but the Greenland Ice Sheet was not far behind, as the Arctic moves to sea-ice-free conditions in summer (the U.S. Navy predicts an ice-free Arctic by summer 2016, a year later than expected by the United Kingdom Parliament, which points out that the six lowest September ice extents have occurred in the last six years, 2006-2012, and now we can add 2013 and 2014 to the list). Glaciologist Jason Box, an expert on Greenland ice, agrees. Box was quoted in a 5 December 2012 article in the Guardian: “In 2012 Greenland crossed a threshold where for the first time we saw complete surface melting at the highest elevations in what we used to call the dry snow zone. … As Greenland crosses the threshold and starts really melting in the upper elevations it really won’t recover from that unless the climate cools significantly for an extended period of time which doesn’t seem very likely.” (In January 2013, Box concluded we’ve locked in 69 feet — 21 meters — of sea-level rise.) Indeed, as stated that same year in the September issue of Global Policy, “because of increasing temperatures due to GHG emissions a suite of amplifying feedback mechanisms, such as massive methane leaks from the sub-sea Arctic Ocean, have engaged and are probably unstoppable.” By December 2013, the disappearance of Greenland’s ice had accelerated to five times the pace of a few years previously, and IPCC was acknowledging they’d been far too conservative with past estimates. Continued conservatism is buttressed by research reported in the 16 March 2014 issue of Nature Climate Change indicating melting of Greenland ice accounts for about one-sixth of recent sea-level rise and also by research published in the 18 May 2014 issue of Nature Geoscience indicating Greenland’s icy reaches are far more vulnerable to warm ocean waters from climate change than had been thought. Finally, a research paper published in the 13 June 2014 of Geophysical Research Letters points out that an ice-free Arctic is likely to cause rapid melting of Greenland ice. ** Ice matters. “Small fluctuations in the sizes of ice sheets during the last ice age were enough to trigger abrupt climate change,” as reported in the 13 August 2014 issue of Nature. ** Predicting Near-Term Human Extinction If you think we’ll adapt, think again. The rate of evolution trails the rate of climate change by a factor of 10,000, according to a paper in the August 2013 issue of Ecology Letters. Even once-rich habitats in Antarctica are becoming biologically impoverished as icebergs, increasingly breaking free from the surrounding sea ice, scour the shallow-water rocks and boulders on which a diversity of creatures cling to life (according to research published in the 16 June 2014 issue of Current Biology). And it’s not as if extinction events haven’t happened on this planet, as explained in the BBC program, The Day the Earth Nearly Died. The rate of climate change clearly has gone beyond linear, as indicated by the presence of the myriad self-reinforcing feedback loops described below, and now threatens our species with extinction in the near term. As Australian biologist Frank Fenner said in June 2010: “We’re going to become extinct,” the eminent scientist says. “Whatever we do now is too late.” Anthropologist Louise Leakey ponders our near-term demise in her 5 July 2013 assessment at Huffington Post and her father Richard joins the fray in this video from December 2013 (see particularly 1:02:18 – 1:02:56). Canadian wildlife biologist Neil Dawe joins the party of near-term extinction in an interview 29 August 2013 and musician-turned-activist Sir Bob Geldof joins the club in a Daily Star article from 6 October 2013. Health officials add their voices to the discussion about extinction in late March 2014, although they view 4 C as a problem to be dealt with later. Writing for Truth-Out, journalist John Feffer writes in his 27 April 2014 essay: “The planet and its hardier denizens may soldier on, but for us it will be game over.” American linguist and philosopher Noam Chomsky concludes we’re done in a 15 June 2014 interview with Chris Hedges at Truthdig, saying climate change “may doom us all, and not in the distant future.” Larry Schwartz, writing for AlterNet on 21 July 2014, concludes, “Many environmentalists think we have already passed the point of no return.” Johns Hopkins professor and fossil hunter Ken Rose agrees in an interview published 29 July 2014: “We’re in the middle of the sixth great extinction on Earth. It probably won’t take too long for humans to go extinct.” ** AT&T Project Manager Jennifer Hynes concludes near-term human extinction certain at the 1:20:30 mark of this comprehensive presentation about global methane release. ** In the face of near-term human extinction, most Americans view the threat as distant and irrelevant, as illustrated by a 22 April 2013 article in the Washington Post based on poll results that echo the long-held sentiment that elected officials should be focused on the industrial economy, not far-away minor nuisances such as climate change. Supporters of carbon farming — the nonsensical notion that industrial civilization can be used to overcome a predicament created by industrial civilization — claim all we need to do is fill the desert with nonnative plants to the tune of an area three-quarters the size of the United States. And, they say, we’ll be able to lower atmospheric carbon dioxide by a whopping 17.5 ppm in only two decades. Well, how exciting. At that blistering pace, atmospheric carbon dioxide will be all the way back down to the reasonably safe level of 280 ppm in only 140 years, more than a century after humans are likely to become extinct from climate change. And, based on research published in the 2 May 2014 issue of Science, soil carbon storage has been over-estimated and is reduced as atmospheric carbon dioxide concentration rises. According to the plan presented in the 23 August 2013 issue of Scientific American, the nonnative plants, irrigated with increasingly rare fresh water pumped by increasingly rare fossil-fuel energy, will sequester carbon sufficient to overcome contemporary emissions. Never mind the emissions resulting from pumping the water, or the desirability of converting thriving deserts into monocultures, or the notion of maintaining industrial civilization at the expense of non-civilized humans and non-human species. Instead, ponder one simple thought: When the nonnative plants die, they will emit back into the atmosphere essentially all the carbon they sequestered. A tiny bit of the carbon will be stored in the soil. The rest goes into the atmosphere as a result of decomposition. This essay brings attention to recent projections and self-reinforcing feedback loops (i.e., positive feedbacks). I presented much of this information at the Bluegrass Bioneers conference (Alex Smith at Radio Ecoshock evaluates my presentation here). More recently, I presented an updated version in a studio in Bolingbrook, Illinois. All information and sources are readily confirmed with an online search, and links to information about feedbacks can be found here. Large-scale assessments Intergovernmental Panel on Climate Change (late 2007): >1.8 C by 2100 (up to 4.5 C, depending upon emissions scenarios) Hadley Centre for Meteorological Research (late 2008): ~2 C by 2100 Later in 2008, Hadley Center’s head of climate change predictions Dr. Vicky Pope calls for a worst-case outcome of more than 5 C by 2100. Joe Romm, writing for Grist, claims, “right now even Hadley [Centre] understands it [> 5 C] is better described as the ‘business-as-usual’ case.” United Nations Environment Programme (mid 2009): 3.5 C by 2100 Hadley Centre for Meteorological Research (October 2009): 4 C by 2060 Global Carbon Project, Copenhagen Diagnosis (November 2009): 6 C, 7 C by 2100 United Nations Environment Programme (December 2010): up to 5 C by 2050 These assessments fail to account for significant self-reinforcing feedback loops (i.e., positive feedbacks, the term that implies the opposite of its meaning). The IPCC’s vaunted Fifth Assessment continues the trend as it, too, ignores important feedbacks (also listen here). As with prior reports, the Fifth Assessment “has been altered after the expert review stage, with changes added that downplay the economic impacts of a warming planet.” Consider, for example, the failure to mention Arctic ice in the Working Group Summary released 31 March 2014 (additional links here). The importance of Arctic ice in delaying catastrophic warming is enormous, as explained quite simply in 2007: Anyone who does not know what Latent Heat is will have a false sense of security. It is not hard to understand if I do not use physics jargon. Place on a hot stove a pot of cold water containing 1 kg of ice cubes. Stir the ice water with a long thermometer and take temperature readings. My question is: When will the thermometer begin to show a rise in temperature? Answer: After all the ice has melted. In other words, all the heat from the stove would first all go into melting the ice, without raising the water temperature. The amount of heat entering a system without raising the temperature of the system is called Latent Heat. It takes 80 calories of heat to melt one gram of ice. So in this case, the first 80,000 calories of heat from the stove went into melting the 1 kg of ice first. Only when the ice is all gone will the water temperature rise, and it will do so until it reaches 100C, when the water will begin to boil. Once again, Latent Heat comes into play, and the water temperature will stabilize at the boiling point – until all the water have changed from liquid to vapour, at which point the temperature of the dry pot will rise to the temperature of the flame itself. So how does this apply to Earth’s climate? Consider the Arctic Ocean to be a gigantic pot of ice water, and the sun as the stove. For as long as there is still sea ice to melt, the Arctic Ocean will remain relatively cool, in spite of the ever increasing solar heat entering the Arctic ocean due to ever decreasing ice cover. When the sea ice is gone in the summer, as early as the latter part of this decade, the Arctic Ocean’s temperature will steeply rise, and when it does, so will the global mean temperature, and all hell will break lose. On a positive note, major assessments fail to account for economic collapse. However, due to the four-decade lag between emissions and temperature rise, the inconvenient fact that the world has emitted more than twice the industrial carbon dioxide emissions since 1970 as we did from the start of the Industrial Revolution through 1970, and also due to the feedback loops described below, I strongly suspect it’s too late for economic collapse to extend the run of our species. Indeed, as pointed out by Bruce Melton at Truth-out in a 26 December 2013 piece featuring climate scientist Wallace Broeker: “today we are operating on atmospheric concentrations of greenhouse gases from the 1970s. In the last 29 years we have emitted as many greenhouse gases as we emitted in the previous 236 years. Because of the great cooling effect of the oceans, we have not yet begun to see the warming that this recent doubling of greenhouse gases will bring.” Greenhouse gas emissions continue to accelerate even as the world’s industrial economy slows to a halt: Emissions grew nearly twice as fast during the first decade of the new millennium as in the previous 30 years, as reported in the 11 April 2014 issue of The Guardian. The 40-year has been evident since at least 1938, when Guy Callendar pointed out influence of rising carbon dioxide on temperature in a paper in the Quarterly Journal of the Royal Meteorological Society. The hand-drawn figure from the paper shown below clearly illustrates a rise in global-average temperature beginning about 1915, roughly 40 years after the consumption of fossil fuels increased substantially. Callendar’s work was used by J.S. Sawyer in a 1972 paper published in Nature to predict an “increase of 25% CO2 expected by the end of the century … [and] … an increase of 0.6°C in the world temperature” with stunning accuracy. Callendar 1938 figure Broadening the Perspective Astrophysicists have long believed Earth was near the center of the habitable zone for humans. Recent research published in the 10 March 2013 issue of Astrophysical Journal indicates Earth is on the inner edge of the habitable zone, and lies within 1% of inhabitability (1.5 million km, or 5 times the distance from Earth to Earth’s moon). A minor change in Earth’s atmosphere removes human habitat. Unfortunately, we’ve invoked major changes. The northern hemisphere is particularly susceptible to accelerated warming, as explained in the 8 April 2013 issue of Journal of Climate. Two days later, a paper in Nature confirmed that summers in the northern hemisphere are hotter than they’ve been for 600 years. As pointed out by Sherwood and Huber in the 25 May 2012 issue of the Proceedings of the National Academy of Sciences and then by James Hansen in his 15 April 2013 paper, humans cannot survive a wet-bulb temperature of 35 C (95 F). As described by the United Nations Advisory Group on Greenhouse Gases in 1990, “Beyond 1 degree C may elicit rapid, unpredictable and non-linear responses that could lead to extensive ecosystem damage” (link mirrored here). James Hansen and crew finally caught up to the dire nature of 1 C warming 23 years after the U.N. warning, 28 self-reinforcing feedback loops too late. We’ve clearly triggered the types of positive feedbacks the United Nations warned about in 1990. Yet my colleagues and acquaintances think we can and will work our way out of this horrific mess with the tools of industrial civilization (which, got us into this mess, as pointed out by Tim Garrett) or permaculture (which is not to denigrate permaculture, the principles of which are implemented at the mud hut). Reforestation doesn’t come close to overcoming combustion of fossil fuels,str as pointed out in the 30 May 2013 issue of Nature Climate Change. Furthermore, forested ecosystems do not sequester additional carbon dioxide as it increases in the atmosphere, as disappointingly explained in the 6 August 2013 issue of New Phytologist. Adding egregious insult to spurting wound, the latest public-education initiative in the United States — the Next Generation Science Standards — buries the relationship between combustion of fossil fuels and planetary warming. The misadventures of the corporate government continue, even as collapse of ecosystems is fully under way. As pointed out in the April 2013 issue of PLoS ONE — too little, too late for many ecosystems — “catastrophic collapses can occur without prior warning.” Some green-washing solutionistas take refuge in the nuclear solution. It’s astonishing what one can conclude when grid-tied electricity is a viewed as a natural right. James Hansen’s endorsement notwithstanding, nuclear power plants cause, rather than prevent, additional warming of Earth. Let’s ignore the models for a moment and consider only the results of a single briefing to the United Nations Conference of the Parties in Copenhagen (COP15). Regulars in this space will recall COP15 as the climate-change meetings thrown under the bus by the Obama administration. The summary for that long-forgotten briefing contains this statement: “THE LONG-TERM SEA LEVEL THAT CORRESPONDS TO CURRENT CO2 CONCENTRATION IS ABOUT 23 METERS ABOVE TODAY’S LEVELS, AND THE TEMPERATURES WILL BE 6 DEGREES C OR MORE HIGHER. THESE ESTIMATES ARE BASED ON REAL LONG TERM CLIMATE RECORDS, NOT ON MODELS.” In other words, near-term extinction of humans was already guaranteed, to the knowledge of Obama and his administration (i.e., the Central Intelligence Agency, which runs the United States and controls presidential power). Even before the dire feedbacks were reported by the scientific community, the administration abandoned climate change as a significant issue because it knew we were done as early as 2009. Rather than shoulder the unenviable task of truth-teller, Obama did as his imperial higher-ups demanded: He lied about collapse, and he lied about climate change. And he still does. Ah, those were the good ol’ days, back when atmospheric carbon dioxide concentrations were well below 400 parts per million (ppm). We’ll blow through the 400 ppm mark soon, probably for the first time in 3.2 to 5 million years. And, as reported in the journal Global and Planetary Change in April 2013, every molecule of atmospheric carbon dioxide since 1980 comes from human emissions. Not to be outdone, methane levels reached an average mean of 1800 parts per billion (ppb) on the morning of 16 June 2013. Tacking on a few of the additional greenhouse gases contributing to climate change and taking a conservative approach jacks up the carbon dioxide equivalent to 480 ppm (and see here, from NOAA). Seeps are appearing in numerous locations off the eastern coast of the United States, leading to rapid destabilization of methane hydrates (according to the 25 October 2013 issue of Nature). On land, anthropogenic emissions of methane in the United States have been severely underestimated by the Environmental Protection (sic) Agency, according to a paper in the 25 November 2013 issue of Proceedings of the National Academy of Sciences. This figure is 1100 ppb higher than pre-industrial peak levels. Methane release tracks closely with temperature rise throughout Earth history — specifically, Arctic methane release and rapid global temperature rise are interlinked — including a temperature rise up to about 1 C per year over a decade, according to data from ice cores. The tight linkage between Arctic warming and planetary warming was verified in an article in the 2 February 2014 issue Nature Geoscience, which found that the Arctic’s cap of cold, layered air plays a more important role in boosting polar warming than does its shrinking ice and snow cover. A layer of shallow, stagnant air acts like a lid, concentrating heat near the surface. Finally, adding fuel to the growing fire, a paper in the 27 March 2014 issue of Nature articulates the strong interconnection between methane release and temperature rise: “For each degree that Earth’s temperature rises, the amount of methane entering the atmosphere … will increase several times. As temperatures rise, the relative increase of methane emissions will outpace that of carbon dioxide.” How long will the hangover persist, after we’re done with the fossil-fuel party? According to University of Chicago oceanographer David Archer: “The climatic impacts of releasing fossil fuel CO2 to the atmosphere will last longer than Stonehenge,” Archer writes in his January 2008 book The Long Thaw. “Longer than time capsules, longer than nuclear waste, far longer than the age of human civilization so far.”
Posted on: Thu, 28 Aug 2014 05:57:20 +0000

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