Over 200 Arctic lakes seeping methane gas

Satellite images have revealed more than 200 strange, bright blue lakes in Russia’s Arctic regions that are leaking methane gas. References Discovered: 200-plus Arctic lakes which bubble like jacuzzis from seeping methane gas http://siberiantimes.com/science/casestudy/features/discovered-200-plus-arctic-lakes-which-bubble-like-jacuzzis-from-seeping-methane-gas/ Photos Reveal More Than 200 Bright Blue Arctic Lakes Have Started Bubbling With Methane Gas http://www.sciencealert.com/photos-reveal-more-than-200-bright-blue-arctic-lakes-have-started-bubbling-with-methane-gas New explanation for Siberia’s mystery…

Waking the Giant: Climate Force and Geological Hazards

Bill McGuire on the influence of climate change on geological systems, the link between episodes of major climate transition and geohazards (2012). Small changes in the Earth’s crust can potentially trigger large hazards such as earthquakes and volcanoes. Bill McGuire is Professor of Geophysical & Climate Hazards at UCL. He was a member of the…

Ice sheet deglaciation and methane emissions, with the scope on Greenland’s melt season

On June 9 2016, Nuuk, the capital of Greenland, reached the warmest temperature ever recorded for the month of June anywhere on the island, 24 degrees Celsius (75 degrees Fahrenheit). An article from NSDIC, published June 22 elaborated on the broader situation: Surface melting on Greenland’s Ice Sheet proceeded at a brisk pace, with three…

NASA/NSIDC: 2016 Arctic sea ice wintertime extent hits another record low

  2016 Arctic sea ice wintertime extent hits another record low By Maria-Jose Viñas, NASA’s Earth Science News Team Excerpt Arctic sea ice appears to have reached a record low wintertime maximum extent for the second year in a row, according to scientists at the NASA-supported National Snow and Ice Data Center (NSIDC) and NASA.…

Alan Robock: We need to move ahead aggressively with the grid and battery technology

Climate scientist Alan Robock, studies nuclear winter, volcanic eruptions and climate, geoengineering, and global warming.http://envsci.rutgers.edu/~robock ClimateState staff interviewed Alan to give us a snapshot of the current state on these topics. There is enough Sun and wind to power the planet Robert Bristow: Do you agree that increased nuclear power generating facilities are required, and should be…

Ice sheets may be hiding vast reservoirs of methane

The study indicates that under the frigid weight of Barents Sea Ice sheet, which covered northern Eurasia some 22 000 years ago, significant amounts of methane may have been stored as hydrates in the ground. As the ice sheet retreated, the methane rich hydrates melted, releasing the climate gas into the ocean and atmosphere for…

AGU 2015: Jennifer Francis recent studies on Weather Blocking Patterns

Recent Changes in Blocking Characteristics Assessed Using Self-Organizing Maps Speaker: Jennifer Ann Francis Blocking anticyclones are known to be associated with persistent weather patterns that often lead to extreme weather events. An outstanding question, however, is whether the frequency and/or intensity of these dynamical features are changing in response to human-caused climate change, and in…

The Science of the Polar Vortex and Jet Stream

At least since around 2001 we have study papers connecting the polar vortex / jet stream behavior to anomalies, such as cold weather outbreaks or precipitation changes. The polar vortex phenomenon was described as early as 1853. In recent years studies linked changes in the cryosphere to the polar vortex. Feel free to suggest further study papers in the comments.…

Can scientists overcome huge uncertainties to pin down how close, or far, we might be to a tipping point?

A 2007 Royal Society paper by NASA scientist Drew Shindell: “… the rarity of palaeoclimate evidence for hydrate-induced climate changes argues that this is a fairly unlikely candidate for near-term sudden climate change. Unlike the others, however, anthropogenic climate change may alter the probability of hydrate release when compared with the past, making the overall…

Global CH4 Atmospheric Methane Average 1811ppb(METOP-2)

Continuing the global CH4 methane average jump, on August 13, 2013 am, 0-12 hr, we hit a new high average of 1811 ppb. A comment at Arctic Sea Ice Forum notes: “Assumed methane emissions for the RCP scenarios; which clearly shows that we are now exceeding the methane emissions assumed for RCP 8.5; which is…

A closer look at subglacial glacier cavities and water pressure

A collection of science around subglacial glacier’s, cavities and about water pressure/water flow. Though someone pointed out that most of the items are focused on land based glaciers, rather than on the WAIS which is a marine ice sheet. However, i welcome all contribution in the comment section which helps to better understand marine ice…

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…

Stable Antarctic Permafrost Melting Faster than Expected

University of Texas: July 24, 2013 AUSTIN, Texas — For the first time, scientists have documented an acceleration in the melt rate of permafrost, or ground ice, in a section of Antarctica where the ice had been considered stable. The melt rates are comparable with the Arctic, where accelerated melting of permafrost has become a…

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…