- Texas climate scientists: On global warming, the science is solid « Climate Progress: "Recent events 'do not alter the conclusions that humans have taken over from nature as the dominant influence on our climate'"
- RealClimate: A mistaken message from IoP?: "The Institute of Physics (IoP) recently made a splash in the media through a statement about the implications of the e-mails stolen in the CRU hack. A couple of articles in the Guardian report how this statement was submitted to an inquiry into the CRU hack and provide some background."
- Robert Watson: “There is no doubt that the evidence for human-induced climate change is irrefutable.” « Climate Progress: "Former chair says IPCC must acknowledge mistakes and 'consider shorter reports focused on the key issues,' but 'In many cases, the IPCC is very conservative in its statements, e.g., the projections of sea level rise.'"
Como a ciência se defende, ou porque razão as pessoas pensam como pensam (ver aqui, também):
- Should Scientists Fight Heat or Stick to Data? - Dot Earth Blog - NYTimes.com: "Some leading lights in environmental science have been pushing their colleagues, and institutions like the National Academies, to come out swinging against the ongoing barrage of assaults from organized opponents of restrictions on greenhouse gases and climate skeptics/contrarians/denialists/realists (pick your label depending on your worldview). The debate over a climate communications strategy was disclosed when a string of e-mail messages was leaked to the Washington Times and Greenwire (the Greenwire story was also published online by The New York Times). Here’s one of the most trenchant comments, not surprisingly from Paul Ehrlich, a battle-hardened veteran of such fights: Most of our colleagues don’t seem to grasp that we’re not in a gentlepersons’ debate, we’re in a street fight against well-funded, merciless enemies who play by entirely different rules."
- Debate the controversy! « Climate Progress: "The serial misinformers and misrepresenters demand equal time for their misinformation and misrepresentations. What should climate science defenders and the media do?"
- The trouble with trusting complex science | George Monbiot | Comment is free | The Guardian: "The attack on climate scientists is now widening to an all-out war on science. Writing recently for the Telegraph, the columnist Gerald Warner dismissed scientists as 'white-coated prima donnas and narcissists … pointy-heads in lab coats [who] have reassumed the role of mad cranks … The public is no longer in awe of scientists. Like squabbling evangelical churches in the 19th century, they can form as many schismatic sects as they like, nobody is listening to them any more.'"
Qualificações sobre o perigo do metano:
- New observations find underwater Arctic Shelf is perforated and venting methane|Skeptical Science: "One of the positive feedbacks from global warming is the thawing of Arctic permafrost. This releases methane, a greenhouse gas over 20 times more potent than carbon dioxide, into the atmosphere. Investigations into Arctic methane have tended to focus on land permafrost. However, there are also vast amounts of methane held underwater in the East Siberian Arctic Shelf (ESAS). This encompasses over 2 million square kilometres, three times as large as the nearby Siberian wetlands, which have been considered the primary Northern Hemisphere source of atmospheric methane. Underwater permafrost acts as a lid to restrain methane stored in the seabed. Until now, it was thought the permafrost was cold enough to remain frozen. However, recent observations have found that over 80% of the deep water over the ESAS is supersaturated, with methane levels more than eight times that of normal seawater (Shakhova 2010). More than half of the surface water is supersaturated also. The methane venting into the atmosphere from this one region is comparable to the amount of methane coming out of the entire world’s oceans."
- RealClimate: Arctic Methane on the Move?: "Methane is like the radical wing of the carbon cycle, in today’s atmosphere a stronger greenhouse gas per molecule than CO2, and an atmospheric concentration that can change more quickly than CO2 can. There has been a lot of press coverage of a new paper in Science this week called “Extensive methane venting to the atmosphere from sediments of the East Siberian Arctic Shelf”, which comes on the heels of a handful of interrelated methane papers in the last year or so. Is now the time to get frightened? No. CO2 is plenty to be frightened of, while methane is frosting on the cake. Imagine you are in a Toyota on the highway at 60 miles per hour approaching stopped traffic, and you find that the brake pedal is broken. This is CO2. Then you figure out that the accelerator has also jammed, so that by the time you hit the truck in front of you, you will be going 90 miles per hour instead of 60. This is methane. Is now the time to get worried? No, you should already have been worried by the broken brake pedal. Methane sells newspapers, but it’s not the big story, nor does it look to be a game changer to the big story, which is CO2."
- The ‘Real’ Take on Methane and Warming - Dot Earth Blog - NYTimes.com: "With a valuable reality check on Arctic methane in the climate context, Realclimate.org (in this case David Archer) illustrates the value of having scientists step into the uncomfortable, but unavoidable, arena of direct public communication. In the post, Dr. Archer, who has tested his chops with a couple of books for general audiences (I forgive him for recycling “ Global Warming: Understanding the Forecast,” the title of my 1992 book on climate ;-) , tries out a nice analogy relating carbon dioxide and methane emissions to various troubles that can endanger a driver"
Anomalias, ou de como, nomeadamente, alguns dos "opinion makers" portugueses se esqueceram que a Terra é redonda (existe - estou a ser pedagógico - o hemisfério norte, e o hemisfério sul, e quando está frio em Conpenhaga, faz calor, e de que maneira, na Austrália):
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