What Is Multi Year Sea Ice?

ice that has survived at least one melt season; it is typically 2 to 4 meters (6.6 to 13.1 feet) thick and thickens as more ice grows on its underside.

Why is multi year sea ice important?

Hummocks of multiyear ice that are several years old are fresh enough that someone could drink their melted water. In fact, multiyear ice often supplies the fresh water needed for polar expeditions.

How long will sea ice last?

A new Nature Climate Change study predicts that summer sea ice floating on the surface of the Arctic Ocean could disappear entirely by 2035. Until relatively recently, scientists didn't think we would reach this point until 2050 at the earliest.