Summary of polar bear population status in 2019 by regional subpopulation, showing populations with decreasing trends. Graphic: IUCN / SSC Polar Bear Specialist Group (PBSG)

Scientists update status of polar bear populations with 2019 data

By Dag Vongraven 20 September 2019 (PBSG) – At the last meeting of the IUCN/SSC Polar Bear Specialist Group (PBSG) in Anchorage in 2016, the group agreed that there was a need for new and documented criteria for the assessment of status and trends of polar bear populations. Work to develop a new set of […]

This animation shows Arctic sea ice decline from 1979 to 2019 from pink to purple, with dark purple in 2019. This animation is based on the Chartic Interactive Sea Ice Graph. Graphic: M. Scott / NSIDC

Falling up: A look back at the 2019 Arctic summer – New record daily lows for sea ice extent in July and early August

3 October 2019 (NSIDC) – Arctic sea ice began its autumn regrowth in the last 12 days of September, with the ice edge expanding along a broad front in the western Arctic Ocean. Overall, the summer of 2019 was exceptionally warm, with repeated pulses of very warm air from northern Siberia and the Bering Strait. […]

Aerial view of Frying Pan Lake in Alaska. If the proposed massive Pebble Mine, located between two prime salmon spawning streams, is ever built, Frying Pan Lake, would disappear beneath a giant pile of tailings. Bristol Bay is one of the world’s greatest fisheries. Photo: SeattlePI

Battle over Bristol Bay mine: Native, fisheries groups sue Trump – “There’s simply no precedent for open pit mining coexisting with sockeye salmon on the scale proposed by the Pebble Mine in Bristol Bay”

By Joel Connelly 8 October 2019 (SeattlePI) – Five Bristol Bay native and fisheries groups sued the Trump administration on Tuesday, seeking to restore Clean Water Act protection and block a giant open pit copper-goldmine proposed cheek-by-jowl with the world’s greatest sockeye salmon fishery. The suit was filed on National Salmon Day. The U.S. Environmental […]

Adult obesity in the U.S. by state in 2018, with top ten states highlighted. Graphic: Trust for Americas Health

U.S. obesity rates hit historic highs in 2018 – Nine states reach adult obesity rates of 35 percent or more – “These latest data shout that our national obesity crisis is getting worse”

WASHINGTON, DC, 12 September 2019 (Trust for America’s Health) – Nine U.S. states had adult obesity rates above 35 percent in 2018, up from seven states at that level in 2017, an historic level of obesity in the U.S., according to the 16th annual State of Obesity: Better Policies for a Healthier America report [pdf] released today by the […]

A herd of musk ox graze in an area of the Arctic National Wildlife Refuge in Alaska. Photo: Arctic National Wildlife Refuge / AP

Trump administration opens huge wildlife refuge in Alaska to drilling – “This destructive, unlawful plan would sell off one of America’s last great wildlands to the highest bidder”

By Steven Mufson and Juliet Eilperin 13 September 2019 (The Washington Post) – The Trump administration on Thursday said it would seek to open up the entire coastal plain of the Arctic National Wildlife Refuge to oil and gas exploration, picking the most aggressive development option for an area long closed to drilling. In filing […]

Hawaii was surrounded by waters with warmer-than-average sea surface temperatures on 9 September 2019. Departures from the seasonal norm are shown in degrees Celsius. On this date, Lihue, Kauai observed its 17th consecutive day of a daily record high temperature being set or tied. This is likely the longest such stretch for any official weather station with a long period of record (more than 50 years) at any site in the U.S. climate database. Graphic: Tropical Tidbits

Hawaii’s warmest summer on record and Alaska’s second warmest in 2019

By Christopher C. Burt 10 September 2019 (Weather Underground) – Although 2800 miles of open ocean separate them, both Anchorage, Alaska and Honolulu, Hawaii experienced their warmest climatological summers (June-August) on record this year. It appears that this was Alaska’s second warmest summer (following that of 2004) but it is likely that it was Hawaii’s […]

Large rivers of melting water form on an ice sheet in western Greenland on 1 August 2019 and drain into moulin holes that empty into the ocean from underneath the ice. The heat wave that smashed high temperature records in five European countries a passed over Greenland, accelerating the melting of the island's ice sheet and causing massive ice loss in the Arctic. Photo: Caspar Haarløv / Into the Ice / AP

Bizarre happenings in the Arctic: Lightning, tropical moisture, and more

By Bob Henson 14 August 2019 (Weather Underground) – You’ll have to forgive the Arctic. It’s had a rough summer. Sea ice is running neck and neck with 2012 for the lowest values on record for this time of year. Wildfires are ringing the Arctic, pouring more carbon dioxide into the air than in any comparable period in 17 […]

Aerial view of Bristol Bay, Alaska. A controversial mining project that was all but killed by the Obama administration is now moving forward under President Trump's EPA. Photo: Jason Ching / CNN

EPA dropped salmon protection after Trump met with Alaska governor – Scientists dumbfounded at gold mine approval that will cause “complete loss of fish habitat” – “We were told to get out of the way and just make it happen”

By Scott Bronstein, Curt Devine, Drew Griffin, and Ashley Hackett 9 August 2019 (CNN) – The Environmental Protection Agency told staff scientists that it was no longer opposing a controversial Alaska mining project that could devastate one of the world’s most valuable wild salmon fisheries just one day after President Trump met with Alaska’s governor, […]

Animation showing the concentration of black carbon particulates — commonly called soot — around the Arctic from 1 July 2019 to 29 July 2019. Graphic: Lauren Dauphin / NASA Earth Observatory

Arctic fires fill Northern Hemisphere skies with soot

By Kasha Patel 1 August 2019 (NASA) – In June and July 2019, more than 100 long-lived and intense wildfires blazed within the Arctic Circle. Most of them burned in Alaska and Siberia, though a few raged even in Greenland. As these fires lofted thick plumes of smoke into the skies, they also launched megatons of tiny, harmful particles into the […]

The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured an image of thick wildfire smoke swirling over the state on 8 July 2019. Meteorologists in Fairbanks reported visibility had dropped to less than one mile due to smoke, and air quality sensors in the city reported skyrocketing levels of particulates in the air. Photo: NASA Earth Observatory

Baked Alaska: State endures warmest month on record in July 2019

By Christopher C. Burt 9 August 2019 (Weather Underground) – July 2019 was the warmest month on record for the state of Alaska, smashing the previous record by almost one full degree Fahrenheit and leaving numerous local records for hottest day and warmest month in the superheated dust. Records for statewide average temperatures date back […]

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