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Jet Contrails Can Affect Air Temperatures in Some Areas, Study Shows
2015-06-19 19:02:00| Climate Ark Climate Change & Global Warming Newsfeed
Yale Environment 360: Jet contrails can mimic the weather impact of clouds and significantly affect daytime and nighttime air temperature swings by up to 6 degrees Fahrenheit in some locales researchers from Penn State have shown. Data from the three days following September 11, 2001, when air travel was highly restricted, had shown that jet contrails thin clouds composed of ice crystals condensed from an aircraft's exhaust likely had an effect on air temperatures. To study the issue over a longer time period,...
How Fast Will Rising Temperatures Shrink CO2 Storage?
2015-06-19 17:43:00| Climate Ark Climate Change & Global Warming Newsfeed
Scientific American: As human activity has increased the amount of carbon dioxide in the atmosphere, carbon cycling has helped to buffer against some of the greenhouse gas's warming effects. But over time, if carbon dioxide levels continue to increase, the planet will become progressively less able to sequester CO2 in the soil or deep within the ocean. Scott Doney, a senior scientist at the Woods Hole Oceanographic Institution in Massachusetts, compares the scenario to an open faucet flowing into a basin (of air),...
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Jet contrails affect surface temperatures
2015-06-18 23:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: High in the sky where the cirrus ice crystal clouds form, jet contrails draw their crisscross patterns. Now researchers have found that these elevated ice cloud trails can influence temperatures on the ground and affect local climate, according to a team of Penn State geographers. "Research done regarding September 2001, during the three days following 9-11 when no commercial jets were in the sky, suggested that contrails had an effect," said Andrew M. Carleton, professor of geography. "But that...
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Insane Heat Wave in Alaska Put Temperatures Higher Than in Arizona
2015-06-05 17:44:00| Climate Ark Climate Change & Global Warming Newsfeed
EcoWatch: Alaska, along with the rest of the Arctic, has been warming even faster than other regions of the world due to climate change. That was the findings of a report this spring from the Department of Energys Pacific Northwest National Laboratory, which found that the rate of warming will only continue to increase in the coming decades. Insane heat in Alaska--90 deg temps near Fairbanks, records toppling like, um, snowmen in May http://t.co/mo6xgGKqoR pic.twitter.com/3yqhV0Sbt6 -- Bill McKibben...
Study dismisses 'hiatus' in global warming, says temperatures up
2015-06-04 19:04:00| Climate Ark Climate Change & Global Warming Newsfeed
Reuters: An apparent slowdown in the pace of global warming in recent years may be an illusion based on skewed data, according to a study on Thursday that found no break in a trend of rising temperatures. In 2013, the U.N. panel of climate experts reported a "hiatus" in warming since about 1998, despite rising man-made emissions of greenhouse gases. That heartened skeptics who say the risks of climate change have been exaggerated. The new U.S. study in the journal Science, based on a re-analysis of...
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