River piracy – the diversion of one stream's headwaters into another – has occurred on long timescales. An analysis of streamflow and digital elevation models documents river rerouting in response to glacier retreat in the Yukon, Canada in May 2016. The image shows dirty icebergs floating in turquoise proglacial Slims Lake at the rapidly disintegrating Kaskawulsh Glacier terminus, Kluane National Park and Preserve, Yukon, Canada.
Article p370; News & Views p327
IMAGE: DAN H. SHUGAR
COVER DESIGN: TULSI VORALIA