Permafrost forms a grid-like pattern in the National Petroleum Reserve-Alaska in Alpine, Alaska, a 22.8 million acre region managed by the Bureau of Land Management on Alaska's North Slope. USGS has periodically assessed oil and gas resource potential there. Photo: David Houseknecht / USGS

Warming Arctic permafrost releasing 12 times more nitrous oxide, a potent greenhouse gas, than previously thought – “This needs to be taken more seriously than it is right now”

By Caitlin McDermott-Murphy 6 June 2019 (The Harvard Gazette) – About a quarter of the Northern Hemisphere is covered in permafrost. Now, it turns out these permanently frozen beds of soil, rock, and sediment are actually not so permanent: They’re thawing at an increasing rate. Human-induced climate change is warming these lands, melting the ice […]

Warming stripes for Washington state, 1895-2018. Graphic: Climate Central

Show your stripes: Iconic global warming imagery goes local

By Bob Henson 20 June 2019 (Weather Underground) – The summer solstice arrives on Friday, 21 June 2019, and so does the second year of “warming stripes”. Launched in 2018, this growing campaign builds on a set of imagery developed by University of Reading climate scientist Ed Hawkins: colored stripes that portray a century-plus of global […]

Erosion in Akiak, Alaska swallowed 75 to 100 feet of Kuskokwim River banks along the village on 20 May 2019. Photo: Ivan Ivan / City of Akiak / KYUK News

Alaska is melting and it’s likely to accelerate global heating – “Every year there’s a new temperature record, it’s getting worse and worse and you feel like a broken record saying it”

By Oliver Milman 14 June 2019 (The Guardian) – A city in western Alaska has lost a huge stretch of riverbank to erosion that may turn it into an island, amid renewed warnings from scientists over the havoc triggered by the accelerating melting of the state’s ice and permafrost. Residents of the small city of […]

Aerial view of melting permafrost near a research site in Arctic Canada. The unprecedented melt rate creates thermokarst, an irregular landscape dotted by lakes, holes, and mounds. Photo: Louise Farquharson

Arctic permafrost melting 70 years sooner than expected, study finds – “This change is unprecedented on this kind of time scale”

By Jan Wesner Childs 14 June 2019 (The Weather Channel) – Scientists studying climate change expected layers of permafrost in the Canadian Arctic to melt by the year 2090. Instead, it’s happening now. A new study published this week in the journal Geophysical Research Letters revealed that unusually warm summers in the Canadian High Arctic between 2003 […]

It’s not your imagination: Allergy season gets worse every year – Pollen allergy seasons continue to get longer and more intense as temperatures rise

By Umair Irfan 21 May 2019 (Vox) – The weather is warming. The flowers are blooming. Noses are running. Eyes are watering. It’s allergy season, and this year it’s been severe in states like Georgia, and cities like Chicago, where the frigid winter delayed the onset. Now that it’s late May, we’re moving away from peak tree […]

Abnormal high temperatures in Alaska disrupt isolated communities, upset subsistence hunting patterns, and cause deaths – “It’s hard to characterize this anomaly, it’s just pretty darn remarkable for that part of the world”

By Tim Lydon 29 May 2019 (Hakai Magazine) – Alaska in March is supposed to be cold. Along the north and west coasts, the ocean should be frozen farther than the eye can see. In the state’s interior, rivers should be locked in ice so thick that they double as roads for snowmobiles and trucks. […]

Rapid permafrost thaw unrecognized threat to landscape, global warming researcher warns – “We are watching this sleeping giant wake up right in front of our eyes”

Rapid permafrost thaw unrecognized threat to landscape, global warming researcher warns – “We are watching this sleeping giant wake up right in front of our eyes”

30 April 2019 (University of Guelph) – A “sleeping giant” hidden in permafrost soils in Canada and other northern regions worldwide will have important consequences for global warming, says a new report led by University of Guelph scientist Merritt Turetsky. Scientists have long studied how gradual permafrost thaw occurring over decades in centimetres of surface […]

Status of polar bear populations for 2014

24 January 2015 (Polar Bear Specialist Group) – The present table was discussed during late fall and early winter 2014, and agreed upon by the group on 20 January 2015. This status table will be updated whenever there is new information available that is considered credible and valid by the group. This year’s status table […]

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