'Sleeping giant' Arctic methane deposits starting to release, scientists find. Scientists have found evidence that frozen methane deposits in the Arctic Ocean – known as the “sleeping giants of the carbon cycle” – have started to be released over a large area of the continental slope off the East Siberian coast, the Guardian can reveal.
High levels of the potent greenhouse gas have been detected down to a depth of 350 metres in the Laptev Sea near Russia, prompting concern among researchers that a new climate feedback loop may have been triggered that could accelerate the pace of global heating. The slope sediments in the Arctic contain a huge quantity of frozen methane and other gases – known as hydrates. Methane has a warming effect 80 times stronger than carbon dioxide over 20 years. The United States Geological Survey has previously listed Arctic hydrate destabilisation as one of four most serious scenarios for abrupt climate change. Climate Science Special Report. Polar Ice Is Disappearing, Setting Off Climate Alarms.
The Earth In Human Hands: Shaping Our Planet's Future. Why Not Start Today: Backyard Carbon Sequestration Is Something Nearly Everyone Can Do. Part one of a series about using regenerative gardening techniques to enhance carbon storage while improving soil health.
To make it simple as a crayon sketch, there are two ways to mitigate climate change that, in tandem, could work. One is to lower emissions. To decarbonize, if you will—and de-nitrous oxide-ize, de-methane-ize, and de-soot-ize as well. It is true that to keep the earth’s average temperature from warming more than 2° C (3.6° F), emissions will have to fall. Drastically. As for the second, carbon sequestration, or pulling carbon out of the air and storing it deep in the ground, as noted environmental journalist Elizabeth Kolbert points out in a recent article, no one knows how to do this.
What the Earth's frozen burps tell us about global warming. “When the earth burps, Law Dome records it,” says Australian climate scientist Dr David Etheridge.
Law Dome is a special spot in eastern Antarctica where scientists have been drilling down into the continent’s long-frozen surface to pull out cores of ice. Trapped in the ice cores are bubbles that give a record of the composition of the Earth’s atmosphere going back tens of thousands of years. New analysis of those bubbles by a group of Australian, British and Italian scientists could have just given an answer to a crucial question. As the Earth gets warmer, how will the planet’s soils and plants react? Will they start to “burp” too much CO2 and, if so, how much? Answering this question is crucial as scientists try and work out just how much more greenhouse gases humans can afford to emit while still keeping to temperature targets agreed at the Paris climate talks last year.
Why Not Start Today: Backyard Carbon Sequestration Is Something Nearly Everyone Can Do. ‘Unprecedented’: Scientists declare ‘global climate emergency’ after jet stream crosses equator. Climate scientists this week expressed alarm after “unprecedented” data showed the Northern Hemisphere Jet Stream crossing the Equator.
In a column on Tuesday, environmental blogger Robert Scribbler noted that the Northern Hemisphere Jet Stream had merged with the Southern Hemisphere Jet Stream. “It’s the very picture of weather weirding due to climate change. Something that would absolutely not happen in a normal world,” he wrote. “Something, that if it continues, basically threatens seasonal integrity.” World's Oceans Could Rise Higher, Sooner, Faster Than Most Thought Possible. If a new scientific paper is proven accurate, the international target of limiting global temperatures to a 2°C rise this century will not be nearly enough to prevent catastrophic melting of ice sheets that would raise sea levels much higher and much faster than previously thought possible.
"Parts of [our coastal cities] would still be sticking above the water, but you couldn't live there. " —Dr. James HansenAccording to the new study—which has not yet been peer-reviewed, but was written by former NASA scientist James Hansen and 16 other prominent climate researchers—current predictions about the catastrophic impacts of global warming, the melting of vast ice sheets, and sea level rise do not take into account the feedback loop implications of what will occur if large sections of Greenland and the Antarctic are consumed by the world's oceans. NASA Confirms A 2,500-Square-Mile Cloud Of Methane Floating Over US Southwest. Expanding Antarctic Sea Ice is Flooding ‘Warning Bell’ Arctic News. The Earth’s Next 100 Years, Visualized. How Science Is Telling Us All To Revolt. Waste land: large-scale irrigation strips nutrients from the soil, scars the landscape and could alter climactic conditions beyond repair.
Image: Edward Burtynsky, courtesy Nicholas Metivier Gallery, Toronto/ Flowers, London, Pivot Irrigation #11 High Plains, Texas Panhandle, USA (2011) In December 2012, a pink-haired complex systems researcher named Brad Werner made his way through the throng of 24,000 earth and space scientists at the Fall Meeting of the American Geophysical Union, held annually in San Francisco. This year’s conference had some big-name participants, from Ed Stone of Nasa’s Voyager project, explaining a new milestone on the path to interstellar space, to the film-maker James Cameron, discussing his adventures in deep-sea submersibles. The Time Lag of Irreversible Change – Nature Bats Last. By Joshua Headley, Deep Green Resistance New York If you’ve been a sentient being for the last few months, you’ve probably been watching some of the most curious weather events happening throughout the world.
Linking Weird Weather to Rapid Warming of the Arctic by Jennifer Francis. 05 Mar 2012: Analysis by jennifer francis Does it seem as though your weather has become increasingly “stuck” lately?
Day after day of cold, rain, heat, or blue skies may not be a figment of your imagination. While various oceanic and atmospheric patterns such as El Niño, La Niña, and the North Atlantic Oscillation have been blamed for the spate of unusual weather recently, there’s now a new culprit in the wind: Arctic amplification. Directly related to sea-ice loss and earlier snowmelt in the Far North, it is affecting the jet stream around the Northern Hemisphere, with potentially far-reaching effects on the weather. Organic mega flow battery promises breakthrough for renewable energy. A team of Harvard scientists and engineers has demonstrated a new type of battery that could fundamentally transform the way electricity is stored on the grid, making power from renewable energy sources such as wind and solar far more economical and reliable.
The novel battery technology is reported in a paper published in Nature on January 9. Under the OPEN 2012 program, the Harvard team received funding from the U.S. Department of Energy's Advanced Research Projects Agency-Energy (ARPA-E) to develop the innovative grid-scale battery and plans to work with ARPA-E to catalyze further technological and market breakthroughs over the next several years. Global Warming changes the Jet Stream, cause of more Extreme Weather. Global warming over the last 16 years. Why a two degree Celsius increase in the global average temperature is a big deal – elizabethmaymp.ca – January 24, 2013. The International Energy Agency is warning that shooting past two degrees Celsius average global temperature will have “dire consequences.”
Pumphandle 2012: Time history of atmospheric carbon dioxide.