The Mackenzie River in Canada plays a major role in Arctic climate as warmer fresh water mixes with cold seawater.

The Mackenzie River in Canada plays a major role in Arctic climate as warmer fresh water mixes with cold seawater. 

This image was taken by the Operational Land Imager on the Landsat 8 satellite on July 18, 2017.

Credit

Source: NASA/USGS Landsat 8; Norman Kuring, GSFC

ENLARGE