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Computer Models Says Australia Drying Due To Ozone Depletion, Greenhouse Gases
Posted by Science 2.0: None Given on July 13th, 2014
Science 2.0: A new climate model says that southwestern Australia's long-term decline in fall and winter rainfall is caused by increases in man-made greenhouse gas emissions and ozone depletion.
NOAA researchers conducted several climate simulations using their global climate model to study long-term changes in rainfall in various regions across the globe. One of the most striking signals of change emerged over Australia, where a long-term decline in fall and winter rainfall has been observed over parts of...
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The Upside To Thawing Permafrost Is…Nothing, It’s Bad
Posted by Science 2.0: None Given on March 21st, 2014
Science 2.0: Every dark cloud has a silver lining and the silver lining for a thawing permafrost is...still a dark cloud.
The climate is warming in the Arctic at twice the rate of the rest of the globe. That has led to a longer growing season and increased plant growth, which captures atmospheric carbon - that is good - but it is thawing the permafrost, which releases carbon into the atmosphere. Permafrost contains three to seven times the amount of carbon sequestered in tropical forests. A thawing permafrost...
Tropical Tropopause Layer: Nature Selectively Buffer Human-Caused Global Warming
Posted by Science 2.0: None Given on February 4th, 2014
Science 2.0: Don't count nature out yet.
Some aspects of climate change are natural. And some mitigation will be also, according to researchers from the Hebrew University of Jerusalem, Johns Hopkins University in the US and NASA’s Goddard Space Flight Center. As the globe warms, ocean temperatures rise, leading to increased water vapor escaping into the atmosphere. Water vapor is really the most important greenhouse gas and its impact on climate is amplified in the stratosphere.
In their study, the researchers...