Antarctica's annual mean surface mass balance estimated using CMIP5 climate models. Future snowfall increases will also likely be largest around the edges of the continent, where storms blow in and temperatures tend to be warmer. CREDIT Previdi and Polvani, 2016.

Increasing Antarctic snowfall may offset sea-level rise

From THE EARTH INSTITUTE AT COLUMBIA UNIVERSITY By mid-century, more Antarctic snowfall may help offset sea-level rise Increasing precipitation masked by natural variability — for now When Antarctica’s air temperature rises, moisture in the atmosphere increases. That should mean more snowfall on the frozen continent. So why hasn’t that trend become evident in Antarctica’s surface…

clip_image006.png

Sea Level Rise, Acceleration, and Closure

Guest essay by Rud Istvan Background There is no doubt that interglacials change sea level (SL). And that sea level rise (SLR) can be dramatic on millennial interglacial time scales. That’s what happens when the vast Laurentide ice sheet (among others) melts. But sea level has changed relatively little in the past 7 millennia. We…

clip_image010.jpg

2015 Updated NOAA Tide Gauge Data Shows No Coastal Sea Level Rise Acceleration

Guest essay by Larry Hamlin NOAA has updated its extensive U.S. coastal tide gauge data measurement records (http://tidesandcurrents.noaa.gov/sltrends/sltrends_us.htm) to include data through year 2015. These measurements include tide gauge data coastal locations  for 25 West Coast,  Gulf Coast and East Coast states along the Pacific Ocean, Gulf of Mexico and Atlantic Ocean. In addition 7…