Nature World News: As global temperatures continue to rise, Chile and Argentina may face critical water storage issues as rain-bearing westerly winds over South America's Patagonian Ice-Field move south, a new study by University of New South Wales researchers found. In reconstructing past changes in the North and Central Patagonian Ice-Field, which plays a vital role in the hydrology of the region, the scientists found that the ice field suddenly contracted around 15,000 years ago after a southerly migration of westerly...