Arctic methane outgassing on the East Siberian Shelf

SkepticalScience.com by John Mason on January 19 2012: In December 2011, following a fresh flurry of sometimes conflicting media reports about methane outgassing on the East Siberia Arctic Shelf (ESAS), we decided to go and talk to the people doing the work on the ground. We are pleased to report that Dr Natalia Shakhova (NS…

Methane release from the East Siberian Arctic Shelf and the Potential for Abrupt Climate Change

Natalia Shakhova, Igor Semiletov | Source University of Alaska, Fairbanks, International Arctic Research Centre, USA Russian Academy of Sciences, Far Eastern Branch, Pacific Oceanological Institute, Vladivostok, Russia “Opening the Arctic”, Washington, Nov.30th-Dec.2nd, 2010. Outline What do we know about methane potential of the ESAS? Is there a mechanism responsible for transformation of methane potential to…

NASA Operation IceBridge: From the Cockpit | Arctic Sea Ice + Commentary (2013)

Published on YouTube Aug 23, 2013: You’ve seen the great cockpit footage from Best of IceBridge Arctic ’13, now go behind the scenes for 9 minutes of scientific commentary with Operation IceBridge Project Scientist Michael Studinger and NASA sea ice researcher Nathan Kurtz, as they discuss the science behind the mission’s study of Arctic sea…

NASA Operation IceBridge: Stunning Aircraft Travel – Documenting Antarctic and Greenland Change

Published on YouTube Aug 16, 2013: The views from the cockpit of NASA’s P-3B aircraft on an Operation IceBridge campaign are truly stunning. The mission doesn’t travel to both ends of the Earth for the scenery of course — the airborne mission is there to collect radar, laser altimetry, and other data on the changing…

Arctic Death Spiral – Evolution to July 2013

Published on YouTube Aug 12, 2013: This is a visualization of the Arctic Death Spiral showing the evolution of the volume of sea-ice over time from 1979 to July 2013. Pitch of the notes are proportional to the average sea-ice volume for each month. Spectral filters are derived from the average sea-ice volume for each…

Each degree of global warming might ultimately raise global sea levels by more than 2 meters

By PIK: 07/15/2013 – Greenhouse gases emitted today will cause sea level to rise for centuries to come. Each degree of global warming is likely to raise sea level by more than 2 meters in the future, a study now published in the Proceedings of the National Academy of Sciences shows. While thermal expansion of…

Methane in the Arctic Circle

Methane In conditions without oxygen, such as at the bottom of a lake orthe sea, decomposition turns organic matter into methane, rather than carbon dioxide. Large increases in methane emissions would be a grave concern, because methane is 25 times moreeffective at warming the planet than carbon dioxide (over a 100 year time scale). Lakes,…

Greenland Anomaly: Late Season Melt Pulse + Methane Emissions August 4th 2013

Follow ClimateState on facebook for climate research https://www.facebook.com/ClimateState Extensive Dark Snow, Very Large Melt Lakes Visible Over West Slope of Greenland as Late Season Melt Pulse Continues by robertscribbler on August 5, 2013 http://robertscribbler.wordpress.com/2013/08/05/extensive-dark-snow-very-large-melt-lakes-visible-over-west-slope-of-greenland-as-late-season-melt-pulse-continues/ Sat Image source: NSIDC http://nsidc.org/greenland-today/ Methane visualization 4th August 2013 MODIS Terra & Aqua (MODIS Combined Value-Added) Aerosol Optical Depth via…

The Late Triassic Extinction, Persistent Photic Zone Euxinia, and Rising Sea Levels

Elevated pCO2 leading to Late Triassic extinction, persistent photic zone euxinia, and rising sea levels Caroline M.B. Jaraula, Kliti Grice, Richard J. Twitchett, Michael E. Böttcher, Pierre LeMetayer, Apratim G. Dastidar and L. Felipe Opazo doi:10.1130/G34183.1 Abstract The Late Triassic mass extinction event is the most severe global warming-related crisis to have affected important extant…

Glaciers and Global Warming

Published on YouTube Nov 21, 2012: Ice shelves that have lived for more than 10,000 years are disintegrating rapidly — in 6 weeks or less. U-M professor Jeremy Bassis is exploring how global warming is effecting glacial calving, and what impact these events will have on the rise of sea level. Related Greenland And Antarctica…

Greenland Ice Sheet: “Starting to Slip”

Published on YouTube Jul 29, 2013: Research scientists provide insights on recent ‘unprecedented’ melting of Greenland’s interior ice sheet. Latest video for The Yale Forum on Climate Change & the Media, the first since returning from Greenland – includes interviews with Ice expert Alun Hubbard, who I met in Kangerlussuaq, as well as a snip from…

A new inventory of mountain glaciers and ice caps for the Antarctic periphery

Andrew Bliss, Regine Hock, J. Graham Cogley | Source Abstract Although the glaciers in the Antarctic periphery make up a large fraction of all mountain glaciers and ice caps on Earth, a detailed glacier inventory of the region is lacking. We compile such an inventory, recording areas, area–altitude distributions, terminus characteristics and volume estimates.Glaciers on…

Subglacial Lakes

By Bethan Davies / AntarcticGlaciers.org Introduction | Radio echo sounding | Satellite altimetry: elevation changes | Effects of active lakes on ice dynamics | Drilling projects | References Introduction The Antarctic continent is underlain by subglacial lakes. Despite the fact that they are overlain by several kilometres of ice, these lakes are interconnected and water…