Melt runoff is making the waters around Greenland less saline

Helicopter View over Greenland. Credit: Wikimedia Commons, Christine Zenino. Greenland’s ice sheet has been melting at a formidable rate for more than 30 years, much to the awe of climate scientists. The Greenland ice sheet is up to 3km thick and would raise sea levels by seven meters if it all melted into the sea. Right…