In 2016 two influential new publications raised the possibility of a rapid acceleration of sea level rise in the 21st century – to ±2 metres (DeConto & Pollard) or more (2-5m, Hansen et al). In this background article we take …
Posted in Bits of Climate, Bits of Geoscience, Climate Forecasts, Science Backgrounds |
Tagged albedo, Alexander Robinson, AMOC, Andreas Peter Ahlstrøm, Andrew Shepherd, Antarctic Bottom Water, Antarctica, Atlantic Meridional Overturning Circulation, bipolar seesaw, Carolina Pagli, climate feedbacks, Curt Davis, Dan Seidov, Dansgaard-Oeschger, David Pollard, Emily Langley, Eric Rignot, Freysteinn Sigmundsson, Geophysical Research Letters, Greenland, Heinrich events, Ian Joughin, ice calving, ice cliff collapse, ice melting, ice sheet dynamics, ice sheets, ice shelf, ice shelves, James Hansen, Jeffrey Severinghaus, Kristin Schild, Marco Tedesco, Mark Maslin, MOC, Nature, Nick Golledge, paleoclimatology, Paul Goddard, Pleistocene, Randall Carlson, Richard Alley, Robert DeConto, Rolf Jansen, Sarah Shannon, Science, sea level rise, sea level rise feedbacks, Sunke Schmidtko, thermohaline circulation, Thomas Stocker, Twila Moon, Understanding Sea Level Rise, Younger Dryas, Yusuke Yokoyama
A layer of Antarctic Bottom Water colder than 0ºC (Credit: NOAA)
Scientists have found a large reduction in the amount of the coldest deep ocean water, called Antarctic Bottom Water, all around the Southern Ocean using data collected from 1980 to 2011.
These findings, in a study now online, will likely stimulate new research on the causes of this change.