Fresh water Archives - State of the Planet

Scientists Map Huge Undersea Fresh-Water Aquifer Off U.S. Northeast

In a new survey of the sub-seafloor off the U.S. Northeast coast, scientists have made a surprising discovery: a gigantic aquifer of relatively fresh water trapped in porous sediments lying below the salty ocean.

by |June 20, 2019

Drought: A Wide-Angle Picture

A new book, the second in a series of primers with the Earth Institute imprint, provides an interdisciplinary overview drought, bringing together many fields including climate science, hydrology and ecology.

by |April 30, 2019

Peak Ecological Water

‘Peak ecological water’ is the point at which so much water is being diverted from the environment for human use, that the ecosystem can no longer function normally. It can even get to the point that an ecosystem is irreversibly damaged, and there are estimates that humans already divert almost 50% of all accessible freshwater globally. According to their article, “Since 1900, half of the world’s wetlands have disappeared. The number of freshwater species has decreased by 50% since 1970, faster than the decline of species on land or in the sea. River deltas are increasingly deprived of flows due to upstream diversions, or receive water heavily contaminated with human and industrial wastes.”

by |June 24, 2010