NASA | Megadroughts Projected for American West

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NASA scientists used tree rings to understand past droughts and climate models incorporating soil moisture data to estimate future drought risk in the 21st century. This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11776 Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Or find NASA Goddard Space Flight Center on facebook: http://www.facebook.com/NASA.GSFC Or find us on Twitter: http://twitter.com/NASAGoddard

Published 2015-02-12 · Watch on YouTube ↗
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