Climate change is real, so why the controversy and debate? Learn to make sense of the science and to respond to climate change denial in Denial101x, a MOOC from UQx and edX. Denial101x isn’t just a climate MOOC; it’s a MOOC about how people think about climate change. Any research used to develop this content…
Eric Rignot Professor of Earth system science at the University of California, Irvine, and scientist at NASA’s Jet Propulsion Laboratory was interviewed on sea level rise and projections. Ice sheets and glaciers can change faster, sooner and in a stronger way than anticipated Machens: As an ice sheet expert, how do you see the sea-level projections…
A 2014 study study led by NASA researchers shows that half-a-dozen key glaciers in the West Antarctic Ice Sheet are in irreversible decline. The melting of these sprawling icy giants will affect global sea levels in the centuries ahead. Read more http://science.nasa.gov/science-news/science-at-nasa/2014/12may_noturningback/
Watch a 20 minute excerpt https://climatestate.com/2015/05/23/nasa-experts-explain-ice-melt-in-antarctica/ In 2014, NASA hosted a media teleconference to discuss new research results on the stability of the West Antarctic Ice Sheet and its potential contribution to future sea level rise. The briefing participants are: — Eric Rignot, professor of Earth system science at the University of California, Irvine, and glaciologist…
ESA posted an update on Antarctic ice loss on 22 May 2015. Above animation shows how warm ocean water penetrates the glacier grounding line through basalt melt, threatening speed up of glaciers, discharged into the ocean. A recent acceleration in ice loss in a previously stable region of Antarctica has been detected by ESA’s ice mission. The…
Peering into the thousands of frozen layers inside Greenland’s ice sheet is like looking back in time. Each layer provides a record of not only snowfall and melting events, but what the Earth’s climate was like at the dawn of civilization, or during the last ice age, or during an ancient period of warmth similar…
Eric Rignot from UC Irvine discusses Observing Antarctic Glaciers. This talk was part of The Sleeping Giant: Measuring Ocean Ice Interactions in Antarctica short course at the Keck Institute for Space Studies at Caltech on September 9, 2013. Related Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from…
Past sea level rise is not captured by models yet, in particular the response from ice sheets in Antarctica due to global warming. Projections therefore can often be regarded to potentially underestimate future sea level rise. For example, Overpeck et al. (2006), and Hansen (2007) suggest possibilities which could eventually lead to a nonlinear response…
Sea ice melt season 2015 Last year a study reported that the Arctic sea ice melt season is getting longer. The situation for the state of the Arctic sea ice this year is already critical, since April 2015 set the 2nd lowest sea ice extent record (NSIDC). A decline of 2.4% per decade relative to…