A new United Nations report warns that winter temperatures in the Arctic are still “locked in” to rise 3-5°C by 2050 and 5-9°C by 2080—with devastating consequences for the region and global sea levels—even if the international community cuts planet-warming emissions in line with the goals of the Paris climate agreement.
Global Linkages: A Graphic Look at the Changing Arctic (pdf) features maps and graphics about climate change, pollution prevention, and biodiversity conservation in the region. While the visual aids have an Arctic focus, they draw connections between what happens in the Arctic and the rest of the world.
The report was prepared by U.N. Environment (UNEP) and the Norwegian foundation GRID-Arendal, in close consultation with the Arctic Council. It is a product of the UNEP’s Sixth Global Environmental Outlook (GEO-6), a comprehensive assessment released Wednesday, as U.N. Environment Assembly (UNEA-4) is held in Nairobi, Kenya.
Both Global Linkages and the GEO-6 underscore the vital importance of policymakers pursuing a coordinated global effort to drive down greenhouse gas emissions (GHGs). As the report points out, “even if we stopped all emissions overnight, winter temperatures in the Arctic will still increase by 4 to 5°C compared to the late twentieth century.”
While human-generated GHGs boost temperatures on a global scale, warming occurs faster in the Arctic. That’s because of a phenomenon called Arctic or polar amplification—which, the report explains, “causes higher temperatures near the poles compared to the planetary average because of a combination of feedback processes.”