Observing Antarctic Glaciers – Eric Rignot

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…

Jeremy Jackson: Sea Level Rise is Dangerous

By Daniel L. Kuester, U.S. Naval War College Public Affairs Feb. 4, 2015 NEWPORT, R.I. – Author, researcher and marine biologist Jeremy Jackson gave a presentation titled “Sea Level Rise is Dangerous” at U.S. Naval War College (NWC), Feb. 3, addressing environmental changes and the implications of those events on people. “The threats to the…

The history of Offshore drilling

Developing crude oil is extremely hazardous in the Arctic, because of strong ocean currents, severe storms and floating ice. (2014 report) http://www.climatecentral.org/news/melting-sea-ice-makes-arctic-drilling-a-risky-business-17018 Offshore drilling https://en.wikipedia.org/wiki/Offshore_drilling Seabed gouging by ice, Oil and gas developments in Arctic waters must address environmental concerns through proper contingency plans. Large parts of the Arctic are covered with ice. During the…

Sea Level Rise Projections until 2100, a nonlinear response?

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…

Climate denial and climate communication #Denial101

ClimateProgress  What’s the best way to show a climate change denier the error of their ways? A new online course answers this question for the masses. Hint: it’s not lobbing an endless stream of scientific evidence that proves human-driven climate change. While this approach may be cathartic, telling those who refuse to accept climate science…

Climate Change with George Monbiot and George Marshall | Guardian Live

Despite the overwhelming evidence, the majority of us have become increasingly adept at ignoring or side-lining climate change. Most of us recognise the danger is real and yet we do nothing to stop it. As the Guardian sets out on its own climate change journey, George Marshall, one of the most eminent thinkers in the…

A journey from 5°C to 2°C – Glen Peters, CICERO

5C is the temperature increase above pre-industrial levels we are heading for if we follow our path of limited or no climate policy. 2C is the temperature increase above pre-industrial levels that most countries around the world have agreed would prevent dangerous climate change. This journey will describe how the energy system must change if…

NASA: Vast Antarctic ice shelf a few years from disintegration

NASA has found that the last section of Antarctica’s Larsen B Ice Shelf is likely to disintegrate before the end of the decade. Transcript: We know that this ice shelf existed for at least 11 to 12 thousand years. In 2002, two-thirds of it collapsed in less than six weeks. In the intervening period between…

Ocean May Be Melting Totten Glacier Says Study

Ocean access to a cavity beneath Totten Glacier in East Antarctica http://www.nature.com/ngeo/journal/v8/n4/full/ngeo2388.html Totten Glacier, the primary outlet of the Aurora Subglacial Basin, has the largest thinning rate in East Antarctica1, 2. Thinning may be driven by enhanced basal melting due to ocean processes3, modulated by polynya activity4, 5. Warm modified Circumpolar Deep Water, which has…