Indo-Asian News Service: Using 29 years of data from satellite imageries, NASA scientists have found extensive greening in the Arctic region, thanks to rising temperatures. The northern reaches of North America are getting greener, said the study that provides the most detailed look yet at plant life across Alaska and Canada. In a changing climate, almost a third of the land cover much of it Arctic tundra is looking more like landscapes found in warmer ecosystems, the researchers said. With 87,000 images taken from...