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…
Feedbacks in the climate system – in which warming is linked to natural CO2 increase, driving further warming – may operate faster than previously thought. ACE CRC: Researchers use Antarctic and Greenland ice cores to examine temperature and CO2 changes during the largest natural climate change in Earth’s recent climate history: the warming out of…
ClimateCrocks.com: Ok, let me apologize for the sound of my questions – I’m getting a second lavalier so that won’t happen again. That plus altitude induced hoarseness. I was interviewing Richard Alley at a conference in Colorado last week. This is part of what he said. More later.
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…
The first evidence of a volcanic eruption from beneath Antarctica’s most rapidly changing ice sheet. The volcano on the West Antarctic Ice Sheet erupted 2000 years ago (325BC) and remains active. Using airborne ice-sounding radar, scientists from British Antarctic Survey (BAS) discovered a layer of ash produced by a ‘subglacial’ volcano. It extends across an…
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.…
Independent videographer Peter Sinclair for The Yale Forum on Climate Change & The Media explains what expert scientists now find to be the lowest extent of Arctic sea ice in recorded history.
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…
Changes in Arctic sea ice coverage are happening at unprecedented rates, with 2012 setting a new record low for sea ice extent. Our ability to predict changes of sea ice loss and understand the impacts on society, from commercial shipping to resource availability, will be driven by further scientific research in the region. Areas for…
National Geographic Extreme Ice: In the extreme, ice-bound regions of the earth, something unprecedented is happening. Everywhere, glaciers and ice sheets have begun breaking apart, and accelerating towards the oceans at alarming speeds. http://www.imdb.com/title/tt1393566 Related World’s Changing Glaciers “Chasing Ice” (2012)
Follow National Geographic photographer James Balog across the Arctic as he deploys time-lapse cameras designed for one purpose: to capture a multi-year record of the world’s changing glaciers. Visit IMDB for more film details. Donate to the project chasingice.com Update The old movie version is no longer available, updated the video URL to a…
November 06, 2008: SFU Canada Research Chairs Seminar Series “Glacier and ice-sheet dynamics in a warming world” Dr. Gwenn Flowers, Canada Research Chair in Glaciology / Department of Earth Sciences Teaser image credit: Ted Scambos & Rob Bauer, NSIDC / A researcher works with an ice core drill during the 2003 Antarctic Megadunes expedition.
The Telegraph: Scientists have captured dramatic footage of massive lakes in the Arctic melting away in a matter of hours. Related Greenland ice sheet collapse, triggered ancient sea level rise 400,000 years ago
Bill McGuire, author of ‘Waking the Giant: How a changing climate triggers earthquakes, tsunamis, and volcanoes‘, discusses the topics raised in his book. Twenty thousand years ago our planet was an icehouse. Temperatures were down six degrees; ice sheets kilometres thick buried much of Europe and North America and sea levels were 130m lower. The…
