Tropic zones expanding due to climate change
By Richard Chasey, posted on July 8th, 2009 in Climate, Ecosystems
Originally Published by Dawn.com
Climate change is rapidly expanding the size of the world’s tropical zone, threatening to bring disease and drought to heavily populated areas, an Australian study has found.
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NASA Image of the Day
Fourmile Canyon Fire
The Fourmile Canyon Fire continued to burn west of Boulder, Colo., in this image taken on Sept. 7, 2010, casting a long line of smoke to the east that was visible from NASA's Aqua satellite in its orbit around the Earth. MODIS, the Moderate Resolution Imaging Spectroradiometer, on NASA’s Aqua satellite captured this natural-color image of the fire at 2:40 p.m. local time (20:40 UTC) on Sept. 7. The red outline corresponds with the unusually high surface temperatures associated with an active fire. The thick smoke plume flows eastward. Over the plains northeast of Denver, the smoke plume casts a shadow to the north. By early morning on Sept. 8, thousands of people had abandoned their homes while the battle against the blaze continued. Image Credit: NASA/MODIS
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