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…

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…

Under the Ice: A closer look at recent Antarctica and Greenland Ice Melt

Source: Polar science news in brief “Environ Earth Sci (2013) 68:1813–1821 DOI 10.1007/s12665-012-2185-y by David Carlson Summary Antarctica Satellite radar altimetry since 2002 shows accelerated thinning (Amundsen Sea, Pine Island and Thwaites glacial ice streams) Laser altimetry shows thinning on 20 of 54 Antarctic ice shelves Ice shelves buttress their tributary glaciers, melt-induced thinning of…

Does Sea Ice loss create the condition for an emerging permanent El Nino state?

Recently Doug asked: “…my question is, how far could this phenomenon go? What is the “end” state? Is it possible for example that we could find the jet stream staying in place for months at a time, years, decades? How wavy could this waviness become?” A main theme of Sea ice loss seems to be…

Exceptional 2012 Greenland Ice Melt Caused By Jet Stream Changes That May Be Driven By Global Warming

By Joe Romm / Climate Progress: New research finds that “unusual changes in atmospheric jet stream circulation caused the exceptional surface melt of the Greenland Ice Sheet (GrIS) in summer 2012.” Prof. Jennifer Francis tells me these changes are consistent with those caused by warming-driven “Arctic Amplification.” And that means GrIS may melt faster than…

Geologic methane seeps along boundaries of Arctic permafrost thaw and melting glaciers

Release of 14C-depleted methane to the atmosphere from abundant gas seeps concentrated along boundaries of permafrost thaw and receding glaciers in Alaska and Greenland Nature Geoscience (2012) Abstract Methane, a potent greenhouse gas, accumulates in subsurface hydrocarbon reservoirs, such as coal beds and natural gas deposits. In the Arctic, permafrost and glaciers form a ‘cryosphere…

Catastrophic sea levels ‘distinct possibility’ this century

A breakthrough study of fluctuations in sea levels the last time Earth was between ice ages, as it is now, shows that oceans rose some three meters in only decades due to collapsing ice sheets. The findings suggest that such an scenario — which would redraw coastlines worldwide and unleash colossal human misery — is…

In Ancient Ice, Clues That Scientists Are Underestimating Future Sea Levels

By John Mahoney / Popsci: The skies do strange things at the NEEM camp, a remote ice-drilling and research facility on the northern Greenland ice sheet. Midnight sunshine. Low clouds of sparkling ice crystals known as “diamond dust.” But when rain fell instead of snow last summer, complete with a rainbow arcing over the camp,…

Video: Lake El’gygytgyn, Pleistocene super-Interglacials and Arctic warmth

John Mason / Skeptical Science: Here is a must-see 2012 presentation by Julie Brigham-Grette of the University of Massachusetts Amherst, covering the research her team has been doing into Lake El’gygytgyn (pronouned El-Guh-Git-Kin), a water-filled meteor crater in Arctic Russia that came into being after the impact of a ~1km diameter space-rock, 3.6 million years ago.…

Waleed Abdalati (NASA): Dramatic Changes in Polar Ice

Video: Welcome to the NASA Earth Exchange (NEX) Virtual Workshop live stream channel. Stay tuned to listen to featured keynote speakers covering research themes from climate modeling to remote sensing applications and high performance computing in Earth Sciences – Watch them live or browse through lectures from the video library. Please visit the NEX Virtual…