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A new study by scientists from NASA and the University of California, Irvine, has found that over 75 percent of the water loss in the drought-stricken Colorado River Basin since late 2004 came from underground resources. The extent of groundwater loss may pose a greater threat to the water supply of the western United States than previously thought.

This week, scientists from The Nature Conservancy and The Dow Chemical Company, with research support from Colorado State University and Duke University, published Finding solutions to water scarcity: Incorporating ecosystem service values into business planning at The Dow Chemical Company's Freeport, Texas facility, which addresses challenges businesses face to accurately estimate the value of water resources and address future scarcity threats. 

In the Arctic Ocean, some ice stays frozen year-round, lasting for many years before melting. But this winter, the region hit a record low for ice older than five years.