Over periods of 2-8 years, after removing the overall trend of about 3 millimeters per year, the globally averaged sea-level rise closely follows the waxing and waning of El Niño. The main reason for this close match is that El Niño shifts rainfall from land to ocean, raising sea level. Its opposing phase, La Niña, shifts rainfall to land, causing sea level to drop.
The new map of ice flow speeds throughout Antarctica will improve our understanding of the vast continent and of future sea level rise.
Greenland’s melting ice sheet could generate more sea level rise than previously thought if greenhouse gas emissions continue to increase and warm the atmosphere at their current rate, according to a new modeling study.
New NASA data show that Jakobshavn Glacier — Greenland's fastest-moving and fastest-thinning glacier for most of the 2000s — grew for a third year in a row. However, it continues to contribute to sea level rise.