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A new research paper written by US and European climate scientists on global warming, released on Monday, reveals that the "smoking gun" in the face of changes in the northern polar region is rapidly warming up . Air temperatures have – and will continue to – and negative impacts around the world.
The new document, "Key Indicators of Climate Change in the Arctic: 1971-2017", is the work of scientists at the International Arctic Research Center of the University of Alaska, Fairbanks, as well as the Geological Survey of Denmark and Greenland in Copenhagen (GUES).
"The Arctic system is moving away from its 20th century state into an unprecedented state, with implications not only inland but beyond the Arctic." -Jason Box, GUES
"The Arctic system is moving away from its 20th century state to an unprecedented state, with implications not only inland but beyond the Arctic," said Jason Box. GUES, lead author of the study. "As the Arctic atmosphere heats up faster than the rest of the world, weather conditions in Europe, North America and Asia are becoming more and more persistent, resulting in extreme weather conditions. example is the disruption of ocean circulation that can further destabilize the climate: for example, the cooling of northwestern Europe and the strengthening of storms. "
That's John Walsh, chief scientist at the AUF's research center, who termed "smoking gun" the Arctic ambient temperatures discovered during the research. This discovery was not anticipated by the team.
"I did not expect the temperature link to be so strong," Walsh said. "All variables are temperature-related, and all components of the Arctic system are involved in this change."
The study, published Monday as a centerpiece in a special issue on Arctic climate change indicators published by the journal Letters of research on the environment, is the first of its kind to combine the observation of physical climate indicators – such as snow cover, rainfall, and seasonal measurements of sea ice extent – with biological impacts, such as a mismatch between the time of flower bloom and the functioning of pollinators. According to Walsh, "never before have so many Arctic indicators been collected in one document".
This three-and-a-half-minute video produced by the research team explains its methodology and conclusions:
The new study comes as temperature records in the polar regions continue to break records. Climatologists said last week that Alaska had experienced the highest temperatures ever recorded in March.
Last month, average temperatures reached 27 ° F last month, 4 degrees higher than the record of 1965. Brian Brettschneider, climate scientist at the International Arctic Research Center of the University of Toronto. Alaska, at Fairbanks, declared to the Anchorage Daily News"We're not just digging past records, it's erasing records."
Also last month, as Common dreams According to the United Nations Environment Program (UNPF), in a far-reaching report, winter temperatures in the Arctic are already "stuck", so that a significant increase in the level of the sea is now inevitable this century.
Rising temperatures, as well as ocean acidification, pollution and thawing permafrost threaten the Arctic and the over four million inhabitants who inhabit it, including 10% of the population. # 39; indigenous. But, as underlined at the time the acting executive director of UNEP, Joyce Msuya, "What's happening in the Arctic does not stay in the Arctic".
This warning was echoed by researchers in the new study released Monday. Their hope, they said, is that discoveries on air temperature and the delicate interconnections between climate and other natural systems of the Arctic "will provide a basis for a more integrated understanding of climate change. Arctic and its role in the dynamics of Earth's biogeophysics systems. "
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