23 November 2015, Aljazeera, Siberia’s melting permafrost fuels climate change. Over the past year, a number of giant, mysterious holes have emerged in Siberia, some as deep as 200 metres. Scientists say the craters may be emerging because the frozen ground, or “permafrost”, that covers much of Siberia has been thawing due to climate change, allowing methane gases trapped underground to build up and explode. Permafrost is ground that is permanently frozen, where the ground temperature has remained below zero degrees Celsius for at least two years. It covers about a quarter of the northern hemisphere’s land surface. When permafrost thaws, microbes digest the plant and animal remains that were locked in the permafrost and release greenhouse gases, carbon dioxide and methane into the atmosphere. The phenomenon is a self-feeding cycle, explained Sarah Chadburn, from the University of Exeter. “Permafrost soils contain vast amounts of carbon, nearly twice as much as is currently in the atmosphere. As the permafrost thaws in a warming climate, the soil decomposes and releases carbon to the atmosphere as carbon dioxide and methane. These are greenhouse gases, and they warm the Earth even more. This leads to more permafrost thawing, more carbon release, and so the cycle continues,” Chadburn said. Read More here
20 November 2015, The Guardian, Organisers of cancelled Paris climate march urge global show of support. People around the world should protest ‘on behalf of those who can’t’, say organisers of climate march forbidden in light of Paris terror attacks. A march expected to attract 200,000 people onto the streets of Paris ahead of crunch UN climate change talks was forbidden by the French government on Wednesday in light of last Friday’s terror attacks. But organisers have said it is now even more important for people around the world to come out onto the streets for “the biggest global climate march in history” to protest “on behalf of those who can’t”. There are 2,173 events organised in more than 150 countries around the world on 28 and 29 November. You can find your nearest event here: The events are designed to put pressure on the leaders from almost 200 countries who will meet in Paris to thrash out a new deal on limiting greenhouse gas emissions post-2020. The conference is considered the most significant since the talks in Copenhagen in 2009, which were widely considered a failure by environmentalists. Emma Ruby-Sachs, deputy director of Avaaz , which has organised the march said: “The tragic attacks in Paris have made the march there impossible. Now it’s even more important for people everywhere to march on the weekend of 29 November on behalf of those who can’t, and show that we are more determined than ever to meet the challenges facing humanity with hope, not fear.” Read More here