Antarctic Ocean Currents at Risk of Collapse Due to Ice Melt and Slowdown.

Antarctic ice melting could slow deep water currents in the world's oceans by more than 40% in the next 30 years, adversely affecting the climate, the spread of fresh water and oxygen, as well as life-sustaining nutrients for centuries, according to a new study published in the journal Nature. The deep ocean current will be "on a trajectory that looks headed towards collapse," said Matthew England, a climate professor at the University of New South Wales (UNSW), who coordinated the study.