Scientists have the first direct evidence that marked changes to Antarctic sea ice drift have occurred over the last 20 years, in response to changing winds. They can now explain why, unlike the dramatic losses reported in the Arctic, the Antarctic sea ice cover has increased under the effects of climate change.

A new study by researchers in Hawaii shows that besides marine inundation (flooding), low-lying coastal areas may also be vulnerable to “groundwater inundation,” a factor largely unrecognized in earlier predictions on the effects of sea level rise.