The Arctic could see summer days with practically no sea ice as early as the next couple of years, according to a new study out of the University of Colorado Boulder., suggest that the first ice-free day in the Arctic could occur over 10 years earlier than previous projections, which focused on when the region would be ice-free for a month or more. The trend remains consistent under all future emission scenarios.
They found that the first day when sea ice coverage dips below the 1-square-kilometer threshold would occur on average four years earlier than the monthly averages, but could occur up to 18 years earlier. Jahn said greenhouse gas emissions are the main contributors to sea ice loss. A decrease in snow and ice cover increases the amount of heat from sunlight absorbed by the ocean, exacerbating ice melt and warming in the Arctic.
While an ice-free Arctic is inevitable, Jahn said future emissions levels will still determine how often the conditions occur. Under an intermediate emissions scenario, a path the current society is on, the Arctic might become ice-free only during late summer and early fall from August to October. But under the highest emissions scenario, the Arctic could be ice-free for up to nine months by late this century.
We have summarized this news so that you can read it quickly. If you are interested in the news, you can read the full text here. Read more:
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Tiny crustaceans discovered preying on live jellyfish during harsh Arctic nightIn the dark and cold of the months-long polar night, food resources are limited. Some groups of marine organisms in the polar regions overcome this challenge by going into a metabolic resting state in winter, surviving on reserves accumulated during the short growth season.
Source: physorg_com - 🏆 388. / 55 Read more »
Global Warming’s New Threat: Arctic Permafrost’s Carbon BombScience, Space and Technology News 2024
Source: SciTechDaily1 - 🏆 84. / 68 Read more »
Alexei Navalny dead: Russian opposition leader and fierce Putin critic dies in Arctic prison at 47Russian President Vladimir Putin’s chief critic and opposer Alexei Navalny has died in jail, according to Russian prison services, at the age of 47.
Source: dcexaminer - 🏆 6. / 94 Read more »
Polar bear sleeping on tiny iceberg drifting in Arctic sea captured in heartbreaking photoSascha is a U.K.-based trainee staff writer at Live Science. She holds a bachelor’s degree in biology from the University of Southampton in England and a master’s degree in science communication from Imperial College London. Her work has appeared in The Guardian and the health website Zoe.
Source: LiveScience - 🏆 538. / 51 Read more »
Arctic Man cancelled, citing permitting issuesArctic Man Founder and Race Director Howard Thies announced the cancellation Saturday. Thies said they’re dealing with permitting issues with the Alaska Department of Natural Resources. The DNR said they offered permitting options and the event’s organizers declined.
Source: AKNewsNow - 🏆 460. / 53 Read more »
Possible legitimacy crisis, ratification of UNCLOS more likely amidst ECS claims in the ArcticA lack of U.S. ratification of the UNCLOS has provided China power in setting international policy and creates a legitimacy crisis for U.S. claims.
Source: KXDF News 13 - 🏆 266. / 63 Read more »