Antarctica ice shelves lost 4,000 gigatons mass over 25 yrs: Study

Researchers have created a detailed history of mass loss from Antarctica's floating ice shelves. They said the ice shelves have experienced a loss of nearly 4,000 gigatons since 1994. The loss produced an amount of meltwater that can nearly fill the Grand Canyon. Researchers used a 25-year record of data from four separate ESA's satellite missions, among other things.