Thursday, January 28, 2010
Ozone Hole Healing Could Cause Further Climate Warming
Though the Antarctic ozone hole is slowly closing, which was once thought to be a good thing because it was once considered one of the biggest environmental threats, it is actually causing warming in the southern hemisphere. Scientists have found that the hole actually helped shield the Antarctic area from the carbon-induced warming over the past 20 years. This happened through high speed winds beneath the hole leading to the formation of brighter clouds during Antarctica's winters. The wind blew water particles from the sea into the air, where they form droplets and, later, clouds. These clouds reflect some of the sun's powerful rays. Aerosol, a particle in the air also helps against greenhouse gases by reflecting heat back into space instead of just into the atmosphere. However, these winds are dying down, which could lead to the areas exposure to CO2 emissions (which would warm the area). Scientists are continuing to study this area for more predictions.
http://www.leeds.ac.uk/news/article/700/ozone_hole_healing_could_cause_further_climate_warming
AND... I found the Partly Cloudy short film!!
http://www.youtube.com/watch?v=UV7HO9FazkI
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