The Arctic is warming even faster than scientists realized

8/12/2022 5:25:00 PM

New calculations show that the region is warming on average almost four times as fast as the rest of Earth.

New calculations show that the region is warming on average almost four times as fast as the rest of Earth.

The Arctic isn’t just heating up two to three times as quickly as the rest of the planet. New analyses show that warming is almost four times as fast.

Thank you for signing up! There was a problem signing you up.August 11, 2022 Rebecca Hersher, NPR News Share: Temperatures in Longyearbyen, Norway above the Arctic Circle hit a new record above 70 degrees Fahrenheit in July 2020.4 ), we visited 157 shadow locations first identified on imagery (8% of the 1,971) and located in the field with the built-in GNSS of late-model Apple iPhones (models 12 Pro Max, 12 Pro and second-generation SE) with positional accuracy in the open landscapes estimated at 3 m.4 ), we visited 157 shadow locations first identified on imagery (8% of the 1,971) and located in the field with the built-in GNSS of late-model Apple iPhones (models 12 Pro Max, 12 Pro and second-generation SE) with positional accuracy in the open landscapes estimated at 3 m.

To calculate the true pace of the accelerated warming, a phenomenon called , the researchers analyzed observational data from 1979 to 2021 ( SN: 7/1/20 ).Globally, the average temperature increase over that time was about 0.(Photo by Sean Gallup/Getty Images) The Arctic is heating up nearly four times faster than the Earth as a whole, according to new research.2 degrees Celsius per decade.We added the length of the broken top to the standing height measured with a laser range-finder.But the Arctic was warming by about 0.Scientists previously estimated that the Arctic is heating up about twice as fast as the globe overall.75 degrees C per decade.The tree standing to solar azimuth obscured others as overlapping shadows fell in line, generating both errors of omission and an overestimate of the height of the first tree in the series.

Heating up Over the last four decades, the global average temperature increased by about 0.In the last 43 years, the region has warmed 3.Six trees shadowed in three instances by what we identified on imagery as single shadows fell in this category.2 degrees Celsius per decade, but in the Arctic, the mean increase per decade was about 0.75 degrees Celsius (left).The study focuses on the period between 1979, when reliable satellite measurements of global temperatures began, and 2021.Comparing the two trends, Arctic temperatures increased on average four times as fast as the global average, with some areas increasing as much as seven times as fast (right).3 provides details and a confusion matrix.The gray dotted line indicates the border of the Arctic Circle.There have been hints in recent years that the Arctic is heating up even more quickly than computer models predicted.In summary, 157 trees were expected from digitized shadows and 155 were found in the field.

Arctic warming, 1979–2021 M.Rantanen/Finnish Meteorological Institute M.“This will probably be a bit of a surprise, but also kind of extra motivation perhaps,” says Richard Davy, a climate scientist at Nansen Environmental and Remote Sensing Center in Norway, who was not involved in the new study.Across the AOI, the total adult count of 5,988 shadows may represent 5,910 trees.Rantanen/Finnish Meteorological Institute Even the best climate models are not doing a great job of reproducing that warming, Rantanen and colleagues say.The inability of the models to realistically simulate past Arctic amplification calls into question how well the models can project future changes there.” There are many reasons why the Arctic is heating up more quickly than other parts of the Earth.It’s not clear where the problem lies.However, the slightly fewer trees than shadows would suggest that the growth rate is lower.However, the slightly fewer trees than shadows would suggest that the growth rate is lower.

One issue may be that the models are struggling with correctly simulating the sensitivity of Arctic temperatures to the loss of sea ice.But human-caused global warming is the underlying reason that the Arctic, and the planet as a whole, are heating up.Vanishing snow and ice, particularly sea ice, are one big reason why Arctic warming is on hyperspeed.The bright white snow and ice create a reflective shield that bounces incoming radiation from the sun back into space.The Arctic Circle is mostly ocean, which used to be frozen for most or all of the year.However, the low cost, simplicity and convenience of GEP was appealing for the large-scale digitizing.But open ocean waters or bare rocks absorb that heat, raising the temperature.Questions or comments on this article? E-mail us at feedback@sciencenews.That means more open water.J.

org Editor's Note: This story has been updated to correct the type of data used in the study.D.The data were observational, not satellite data.That heat helps melt more ice, which means more water to trap more heat – the loop feeds on itself, accelerating warming in the Arctic.Citations.

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and the liberals will tell you it is because hot temps rise so they go to the top of the world Get it nice and steamy. And this will be worse and worse punkbiology 🤣🤣🤣🤣 Heart is energy so make ac out of it. Tell China and other mass polluting countries. Peddle your fear porn with them. I wonder why! Dumb people are leaving all kinds of particles in th e upper atmosphere. More ROCKETS AND PLANES THAN EVER. Upper air currents head for the poles. Europe is getting the results as debris goes from southern states to the Arctic.

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The Arctic is heating up nearly 4 times faster than the whole planet, study findsScientists previously estimated that the Arctic is heating up about twice as fast as the globe overall, but a new study finds that's a significant underestimate. Loss of sea ice is one of the clearest drivers behind the rapid warming.

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Sufficient conditions for rapid range expansion of a boreal conifer - NatureA boreal conifer is advancing northwards into Arctic tundra, with this treeline advance facilitated by climate warming together with winter winds, deeper snow and increased soil nutrient availability.

Sufficient conditions for rapid range expansion of a boreal conifer - NatureA boreal conifer is advancing northwards into Arctic tundra, with this treeline advance facilitated by climate warming together with winter winds, deeper snow and increased soil nutrient availability.

The Arctic is heating up nearly 4 times faster than the whole planet, study findsScientists previously estimated that the Arctic is heating up about twice as fast as the globe overall, but a new study finds that's a significant underestimate. Loss of sea ice is one of the clearest drivers behind the rapid warming.

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