Record-breaking smoke over Canada.
For more than a month, dozens of large fires have raged in British Columbia &, more recently, the Northwest Territories. NASA photo.
Wednesday, 19 April 2017
Climate change causes glacial river in Yukon to change direction
Glacier retreated so much that its meltwater switched course, in an event not documented in modern times. Story here. The Kaskawulsh glacier from which the river in question used to flow - in a different direction. 2014 Photo by Gstest