Studies fault warming in much of 2013 wild weather The article below is just an example of people living inside a little bubble of belief and operating only on its assumptions. How COULD global warming be responsible for wild weather when there has been NO global warming for many years? Something that doesnt exist cant be responsible for anything, can it? And the report is based on very limited data anyway. I was amused by this: The influence on Australias hottest year in more than a century is glaring. That may be true of the limited time-frame they used but what if we go back over 200 years? How do they explain the huge heat-wave in Australia of 1790? (Yes. 1790. not 1970). There was NO fossil fuel being used in Australia at that time and there werent even any sheep farting. And Steve Goddard draws our attention to the clipping below, with the question: I wonder what caused the wild weather of 1927? >>>>>>>>>>>>>>>>>>>>>>>> The article: Scientists looking at 16 cases of wild weather around the world last year see the fingerprints of man-made global warming on more than half of them. Researchers found that climate change increased the odds of nine extremes: Heat waves in Australia, Europe, China, Japan and Korea, intense rain in parts of the United States and India, and severe droughts in California and New Zealand. The California drought, though, comes with an asterisk. Scientists couldnt find a global warming link to an early South Dakota blizzard, freak storms in Germany and the Pyrenees, heavy rain in Colorado, southern and central Europe, and a cold British spring. Organized by the U.S. National Oceanic and Atmospheric Administration, researchers on Monday published 22 studies on 2013 climate extremes in a special edition of the Bulletin of the American Meteorological Society. Its not ever a single factor that is responsible for the extremes that we see, said NOAA National Climatic Data Center director Tom Karl said. Natural variability is always part of any extreme climate event. For years, scientists said they could not attribute single weather events — like a drought, heat wave or storm — to man-made global warming. But with better computer models and new research, in some cases scientists can see how the odds of events increase — or not — because of climate change. Other researchers question the usefulness and accuracy of focusing on single extreme events. The editors of the 108-page compilation of studies wrote that people and animals tend to be more affected by extreme weather than changes in averages, so they pay attention to it. The public often connects extreme events to climate change, sometimes wrongly, so scientific analysis like this can help inform the publics understanding of our changing environment. The report seeks to find how much and how man-made warming has influenced the weather, said NOAA research meteorologist Martin Hoerling, an editor of the report. The influence on Australias hottest year in more than a century is glaring, the reports editors said. Its almost impossible to explain Australias hot 2013 without climate change, said Peter Stott of the United Kingdoms meteorology office, another report editor. The most complicated issue is the California drought, the only extreme that has continued into this year. Three teams studied that states record drought in different ways. Two teams couldnt find a link to global warming and water and air temperatures, but the third from Stanford University looked at high pressure patterns in the air and found a connection. A high pressure system parks over the northern Pacific during Californias winters, which is normally when it gets rain. Higher atmospheric pressure usually means less storms and rain. The pressure was so strong last year that study lead author Daniel Swain called it a ridiculously resilient ridge. The Stanford team ran computer models with and without man-made warming from the burning of coal, oil and gas. The warming from greenhouse gases showed that the rain-blocking ridge of high pressure was more than three times more likely with man-made factors than without, Swain said. Theres definitely a climate change signal, Swain said. Earlier peer-reviewed studies looking at atmospheric patterns have also connected Californias drought to climate change. However, the editors of the journals special edition said that with the studies in Mondays report that couldnt find a man-made signal in California and the indirect nature of the Swain report, it is unclear whether a global warming connection can be pinned on Californias drought. Hoerling said there were still questions about the Swain study. Other scientists said Swains study was convincing. The report as a whole is a reflection that more and more future climate extremes around the globe will be attributed to human-caused climate change, said University of Arizona climate scientist Jonathan Overpeck, who wasnt part of the research. In two extreme events — the British cold spring and the September northern Colorado rains — the report found global warming actually decreased their likelihoods and yet they happened. SOURCE
Posted on: Mon, 06 Oct 2014 12:29:45 +0000
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