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18 January 2017
A new study shows melting sea ice in the Arctic Ocean could put at risk the objectives of the Paris Agreement to address climate change. The study’s authors conclude that, due to the future increase in the sea ice-albedo feedback, global carbon dioxide emission levels would need to reach zero five to 15 years earlier than expected to meet targets set by the agreement, substantially increasing mitigation costs.
27 June 2016
Even if countries adhere to the Paris climate agreement hammered out last fall, capping global warming at 2 degrees Celsius (4 degrees Fahrenheit) would likely require net zero greenhouse gas emissions by 2085 and substantial negative emissions over the long term, according to an in-depth analysis by scientists at the National Center for Atmospheric Research (NCAR) in Boulder, Colorado.