American Geophysical Union

Distinguishing drought and water scarcity

Water resources can become strained by both natural factors such as drought and by human factors such as unsustainable use. Water resource managers can develop practices to reduce overuse of water resources, but they cannot ...

Mar 15, 2013 4 / 5 (1) 0

How many lakes are there, and how big are they?

Because of the important role lakes play in regional and local biogeochemical cycling, including carbon storage and emissions, scientists need to know how many lakes of various sizes exist. However, determining the size distribution ...

Feb 11, 2013 5 / 5 (1) 1

Tracing the origin of Arctic driftwood

Tracking the origin of driftwood samples could help scientists to reconstruct past currents in the Arctic Ocean, a new study suggests. Arctic currents are likely to be affected by changing climate, but there are few observations ...

Jan 29, 2013 3.3 / 5 (3) 0