Caribou and geese at Teshekpuk Lake in North Slope Borough, Alaska in 2019. The Trump administration, in its final days, decided to open millions more acres of land in the Alaskan Arctic to oil and gas drilling, including the wetlands around Teshekpuk Lake, which are a crucial breeding area for migratory birds and calving grounds for roaming caribou. Photo: Bonnie Jo Mount / The Washington Post

Trump administration opens millions more acres of Alaska to drilling – “A last-minute and irresponsible effort to open an enormous amount of land in a sensitive area”

By Dino Grandoni 5 January 2021 (The Washington Post) – The Trump administration, in its final days, decided to open millions more acres of land in the Alaskan Arctic to oil and gas drilling. The decision from the Bureau of Land Management on Monday, finalized just two weeks before President Trump is set to leave office, will […]

Map showing the age of sea ice in the Arctic at winter maximum in 2000 (left, week of March 18) and 2020 (right, week of March 21). Ice older than 5 years (white) is very rare today; only a small ribbon remains along the islands of the Canadian Arctic. Age is a stand-in for ice thickness and durability; young ice is thinner and more likely to melt in the summer. NOAA Climate.gov map, based on data from the National Snow and Ice Data Center. Graphic: NOAA

Sea ice loss and extreme wildfires mark another year of Arctic change – “The transformation of the Arctic to a warmer, less frozen, and biologically changed region is well underway”

8 December 2020 (NOAA) – NOAA’s 15th Arctic Report Card catalogs for 2020 the numerous ways that climate change continues to disrupt the polar region, with second-highest air temperatures and second-lowest summer sea ice driving a cascade of impacts, including the loss of snow and extraordinary wildfires in northern Russia. The Arctic Report Card is […]

Map showing surface air temperature anomaly for November 2020 relative to the November average for the period 1981-2010. Data source: ERA5. Graphic: Copernicus Climate Change Service / ECMWF

Global November temperatures reached a record high in 2020 – Europe experienced its warmest autumn on record

7 December 2020 (Copernicus Climate Change Service) – The Copernicus Climate Change Service (C3S), implemented by the European Centre for Medium-Range Weather Forecasts (ECMWF) on behalf of the European Commission, announced today that global average temperatures in November 2020 were the highest recorded for the month by a clear margin in the C3S data set. Reanalysis data […]

Record flooding caused this landslide in Haines, Alaska on 2 December 2020. Photo: Seaba Heli / Facebook

“The wettest day ever”: At least 6 people missing, homes destroyed after record-breaking Southeast Alaska rainstorm

By Jessica Flores 3 December 2020 (USA TODAY) – Evacuations and search and rescue efforts were underway Wednesday after a record-breaking rainstorm swept across Southeast Alaska, triggering mudslides and widespread flooding. Multiple precipitation records were broken Tuesday across the region, including a single-day rainfall record from 1946, according to the National Weather Service in Juneau. […]

Global map of temperature anomalies relative to the 1981-2010 long-term average from the ERA5 reanalysis for January to October 2020. Graphic: Copernicus Climate Change Service / ECMWF

WMO: 2020 on track to be one of three warmest years on record – More than 80 percent of the global ocean experienced a marine heatwave in 2020

GENEVA, 2 December 2020 (WMO) – Climate change continued its relentless march in 2020, which is on track to be one of the three warmest years on record. 2011-2020 will be the warmest decade on record, with the warmest six years all being since 2015, according to the World Meteorological Organization. Ocean heat is at […]

Radar images from the Sentinel-1 satellite of the Milne Ice Shelf breakup at the end of July 2020. Photo: Dr. Adrienne White / Canadian Ice Service

Canada’s last fully intact Arctic ice shelf collapses – “This was the largest remaining intact ice shelf, and it’s disintegrated, basically”

By Moira Warburton 6 August 2020 (Reuters) – The last fully intact ice shelf in the Canadian Arctic has collapsed, losing more than 40% of its area in just two days at the end of July, researchers said on Thursday. The Milne Ice Shelf is at the fringe of Ellesmere Island, in the sparsely populated […]

Arctic temperature departures from average for 21 June 2020, showing extreme temperatures in Siberia and parts of Canada. The northeastern Siberian town of Verkhoyansk is likely to have set a record for the highest temperature documented in the Arctic Circle, with a reading of 100.4 degrees (38 Celsius) recorded Saturday, 20 June 2020. Graphic: Climate Reanalyzer

Hottest Arctic temperature record probably set with 100-degree reading in Siberia

By Andrew Freedman 21 June 2020 (The Washington Post) – A northeastern Siberian town is likely to have set a record for the highest temperature documented in the Arctic Circle, with a reading of 100.4 degrees (38 Celsius) recorded Saturday in Verkhoyansk, north of the Arctic Circle and about 3,000 miles east of Moscow. Records […]

Map showing surface air temperature anomaly for May 2020 relative to the May average for the period 1981-2010. May 2020 was the hottest May on record. Data: ERA5. Graphic: Copernicus Climate Change Service / ECMWF

May 2020 was hottest May on record – “The really large anomalies started during January, and since then this signal has been quite persistent”

By Kelly Macnamara and Marlowe Hood 5 June 2020 PARIS (AFP) – Temperatures soared 10 degrees Celsius above average last month in Siberia, home to much of Earth’s permafrost, as the world experienced its warmest May on record, the European Union’s climate monitoring network said Friday. Large swathes of Siberia have been unusually warm for […]

Total column ozone field (in Dobson Units) from CAMS, 1 April 2020 - 6 April 2020, showing values below 250 DU over large parts of the Arctic. Video: Copernicus Atmosphere Monitoring Service / ECMWF

Arctic ozone depletion tracks at record levels in Spring 2020

9 April 2020 (WMO) – Depletion of the ozone layer, ­ the shield that protects life on Earth from harmful levels of ultraviolet radiation, ­is at an unprecedented level over large parts of the Arctic this spring . This phenomenon is caused by the continuing presence of ozone­-depleting substances in the atmosphere and a very […]

Surface air temperature anomaly for February 2020 relative to the average for the period 1981-2010. Data: ERA5. Graphic: Copernicus Climate Change Service / ECMWF

The boreal winter season 19/20 was by far the warmest winter season ever recorded in Europe – “Europe has been experiencing its mildest winter on record”

4 March 2020 (C3S) – With persistent mild weather over Europe, particularly in the north and east, the past winter was 3.4 °C warmer than the average winter for the period 1981-2010. The temperature was almost 1.4°C higher than that of the previous warmest winter, 2015/16. Back in November C3S seasonal predictions provided strong indications […]

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