Anthony Watts writes: “This really makes all the hype over the now discredited Steig et al. paper, which attempted to establish an air temperature warming trend as one of the possible causes for “Antarctic melting”, [...] look even weaker.“
WASHINGTON — Warm ocean currents attacking the underside of ice shelves are the dominant cause of recent ice loss from Antarctica, a new study using measurements from NASA’s Ice, Cloud, and land Elevation Satellite (ICESat) revealed.
An international team of scientists used a combination of satellite measurements and models to differentiate between the two known causes of melting ice shelves: warm ocean currents thawing the underbelly of the floating extensions of ice sheets and warm air melting them from above. The finding, published today in the journal Nature, brings scientists a step closer to providing reliable projections of future sea level rise.
More at NASA.