By Richard Black, Environment correspondent, BBC News20 May 2012 Scientists have identified thousands of sites in the Arctic where methane that has been stored for many millennia is bubbling into the atmosphere. The methane has been trapped by ice, but is able to escape as the ice melts. Writing in the journal Nature Geoscience, the […]
By Steve Connor23 April 2012 A new source of methane – a greenhouse gas many times more powerful than carbon dioxide – has been identified by scientists flying over areas in the Arctic where the sea ice has melted. The researchers found significant amounts of methane being released from the ocean into the atmosphere through […]
1000-year records of southern hemisphere background concentrations of CO2 parts per million (ppm – orange), N2O parts per billion (ppb – blue) and CH4 (ppb – green) measured at Cape Grim Tasmania and in air extracted from Antarctic ice and near surface levels of ice known as firn. Global CO2, methane (CH4), and nitrous oxide […]
By Dean Kuipers27 February 2012 Hear the sound of chewing out in our vast forests of lodgepole pine, spruce and fir, the chewing that’s already destroyed half the commercial timber in important regions like British Columbia? That’s the sound of climate change, says biologist Reese Halter. Global warming in the form of a bark beetle. […]
By David Archer7 January 2012 Let’s suppose that the Arctic started to degas methane 100 times faster than it is today. I just made that number up trying to come up with a blow-the-doors-off surprise, something like the ozone hole. We ran the numbers to get an idea of how the climate impact of an […]
Visit msnbc.com for breaking news, world news, and news about the economy December 30 (MSNBC) – Jim Maceda travels to Siberia to interview Sergei Zimov, who has published a series of scientific papers exposing the importance of permafrost and high-latitude carbon dioxide and methane emissions in the global carbon cycle. Zimov initiated the Pleistocene Park […]
By JUSTIN GILLIS20 December 2011 In my article over the weekend about the climate risks from buried Arctic carbon, I omitted any discussion of one issue that sometimes appears in the news: methane deposits under relatively shallow seawater near the coasts of Siberia, Canada and Alaska. It was a purposeful omission because my piece focused […]
By JUSTIN GILLIS16 December 2011 FAIRBANKS, Alaska – A bubble rose through a hole in the surface of a frozen lake. It popped, followed by another, and another, as if a pot were somehow boiling in the icy depths. Every bursting bubble sent up a puff of methane, a powerful greenhouse gas generated beneath the […]
By Steve Connor14 December 2011 Dramatic and unprecedented plumes of methane – a greenhouse gas 20 times more potent than carbon dioxide – have been seen bubbling to the surface of the Arctic Ocean by scientists undertaking an extensive survey of the region. The scale and volume of the methane release has astonished the head […]
[The usual Desdemona disclaimer: So the leaders of men conceived of their most desperate strategy yet.] 12 October 2011 A U.S. panel has called for a concerted effort to study proposals to manipulate the climate to slow global warming — a heretical notion among some environmentalists. In an interview with Yale Environment 360, Jane C. […]
