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2016-08-23 10:05:16

Arctic headed for temperature highs not seen in 52M years New research points to a much warmer Arctic, where trees like this 50 million year old, now mummified redwood on Axel Heiberg could grow, that is, if efforts to reduce greenhouse gas emissions fail. (PHOTO BY JANE GEORGE) If the world doesn find a way to reduce its climate warming greenhouse gas emissions, the Arctic will face a warmer and wetter future, with temperature rises of between 14.7 C and 19.5 C by 2300. That a prediction from research published May 23 in the journal Nature Climate Change which says unregulated exploitation of the fossil fuel resource could ultimately result in considerably more profound climate changes than previously suggested. team of researchers from the University of Victoria used simulations from four Earth system models for their study. In climate response to five trillion tonnes of carbon, they considered a as usual future for the world, without any reductions in greenhouse gas emissions and a release of five trillion tonnes of carbon dioxide emissions into the atmosphere. That much more than trillion ton cap recommended by the Intergovernmental Panel on Climate Change to keep global warming below two degrees. Katarzyna Tokarsk from the UVic Climate Modelling group says is relevant to know what would happen if we do not take actions to mitigate climate change for example, if we do not ever implement the Paris Agreement or other similar agreements. What he and the other members of the group found is that in response to five trillions tons of carbon emissions, from the burning of fossil fuels like coal and gas, would create global mean warming of between 6.4 C and 9.5 C but Arctic warming would reach between 14.7 C and 19.5 C, with precipitation increases more than four times higher. If you wondering

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what that would be like, you can look at the High Arctic climate of Ray Ban Sunglasses about 50 million years ago, during the period known as the Eocene epoch, when tropical forests grew on Axel Heiberg and sharks and hippo like creatures roamed Arctic waters. Axel Heiberg 50 million year old fossil forest has attracted the interest of climate scientists for years because it shows what that warmer Arctic would be like. In 1999, this forest drew a group of scientists who came to excavate mummified stumps and logs from that era, as well as remnants of the leaves that covered the forest floor, still be found in their original positions. The scientists who arrived on Axel Heiberg Island on June 1999 to spend five weeks there at the fossil forest site were funded by a $1.6 million, three year grant from the Andrew W. Mellon Foundation, a charitable foundation that supports projects that to support the well doing or well being of mankind. team included a forest ecologist, a fossil plant biologist, a wood anatomist and a geochemist, who studied how the ancient forest grew and see what it could reveal about global warming. Plant phsyiologist David Vann then told Nunatsiaq News that their findings would likely show that the end results of global warming might be positive, despite rising sea levels and catastrophic storms. would reassure people that when it all done, the world would be a nicer place, Vann said. People in the High Arctic communities of Resolute Bay and Grise Fiord have said they want to see a territorial park there, called Napartulik, which would protect the ancient fossil forest. The park creation has been up for discussion in the legislature since 2010, when the GN said the process of founding a territorial park to protect the forest could take up to 10 years. In 2015, Nunavut environment department said it was carrying over the $215,000 earmarked for a territorial park feasibility study for yet another year.

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