Ian Bunn | Political & Popular Culture Arts

John Vidal the British Author and environment editor for The Guardian newspaper has published an article titled ‘The staggering decline of sea ice at the frontline of climate change’ highlighting how scientists on board Greenpeace’s vessel exploring the minimum extent of the ice cap are shocked at the speed of the melt. Vidal states “The vast polar ice cap, which regulates the Earth’s temperature and has been a permanent fixture in our understanding of how the world works, has this year retreated further and faster than anyone expected. The previous record, set in 2007, was officially broken … a reduction of nearly 50% compared to just 40 years ago. … This year, 11.7m sq km of ice melted, 22% more than the long-term average of 9.18m sq km. …The record hasn’t just been broken, it’s been smashed to smithereens, adding weight to predictions that the Arctic may be ice-free in summer months within 20 years, say British, Italian and American-based scientists on board the [Greenpeace ice breaker] Arctic Sunrise. They are shocked at the speed and extent of the ice loss. …All over the Arctic the effects of accelerating ice loss and a warming atmosphere are being seen. The ecology is changing rapidly as trees and plants move north, new beetles devastate whole forests in Canada, Siberia and Alaska, and snowfall increases. Inuit and other communities report more avalanches, the erosion of sea cliffs and melting of the permafrost affecting roads and buildings. Whole coastal communities may have to be moved to avoid sea erosion.”

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Robin McKie the British Science and Technology editor for the Observer has published an article in The Guardian titled ‘Rate of Arctic summer sea ice loss is 50% higher than predicted’ discussing the new satellite images that show polar ice coverage dwindling in extent and thickness. In the article McKie states “Sea ice in the Arctic is disappearing at a far greater rate than previously expected, according to data from the first purpose-built satellite launched to study the thickness of the Earth’s polar caps. Preliminary results from the European Space Agency’s CryoSat-2 probe indicate that 900 cubic kilometres of summer sea ice has disappeared from the Arctic ocean over the past year. This rate of loss is 50% higher than most scenarios outlined by polar scientists and suggests that global warming, triggered by rising greenhouse gas emissions, is beginning to have a major impact on the region. In a few years the Arctic ocean could be free of ice in summer, triggering a rush to exploit its fish stocks, oil, minerals and sea routes. Using instruments on earlier satellites, scientists could see that the area covered by summer sea ice in the Arctic has been dwindling rapidly. But the new measurements indicate that this ice has been thinning dramatically at the same time. For example, in regions north of Canada and Greenland, where ice thickness regularly stayed at around five to six metres in summer a decade ago, levels have dropped to one to three metres.”

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