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Friday, May 4, 2012
World of Change
NASA's Earth Observatory provides a unique way to view changes in Earth systems. CLICK HERE to watch a satellite view of changes in the level of Lake Powell from 1999-2011. Once the page opens, click on the "play arrow" below the image to make the years go by. The menu on the right side of the page lists several other changes that can be viewed, including one that compares El Nino/La Nina to rainfall (1985-2008), another that shows a mountain-top mine in West Virginia from 1984-2010, and several others.