Map showing Arctic temperature anomalies for December 2019, January 2020, and February 2020. Mainland Alaska and northwest Canada, along with parts of Greenland and Svalbard were the primary high latitude areas that were consistently colder than average during winter 2019/2020. Northern Eurasia was outlandishly mild. Graphic: Karsten Haustein / Twitter

Winter 2019/2020 warmest on record in Moscow, first winter to average above freezing – Temperature milestones set across Europe and North America – German ice wine harvest fails for first time on record

By Andrew Freedman 2 March 2020 (The Washington Post) – The meteorological winter of 2019-2020 shattered temperature records in Russia and France as well as other parts of Europe and the United States. In Moscow, this was the warmest winter in nearly 200 years of record-keeping, and the first winter there to have an average […]

Oregon state Senate President Peter Courtney pauses after declaring in the state Senate on Tuesday, 25 February 2020, that amid a boycott by Republican senators, not enough lawmakers were present to reach a quorum. The drastic move by Republicans in Oregon highlights how pitched the debate over how to respond to global warming is becoming, with the GOP saying leaving the Capitol was the only way to halt legislation they view as too extreme in a Legislature dominated by Democrats. Democrats warn that doing nothing at this point is too dangerous. In an interview with The Associated Press, Courtney, the longest-serving legislator in Oregon history, said he has not found a way out of the impasse and is broken hearted. Photo: Andrew Selsky / AP Photo

Republican lawmakers walk out after Oregon climate bill advances

By Andrew Selsky 25 February 2020 SALEM, Oregon (AP) – A rebellion by GOP politicians in liberal Oregon intensified Tuesday when Republican members of the House joined their Senate counterparts in a walkout, freezing legislation on climate change, wildfire mitigation, homeless assistance and a landmark compromise between the timber industry and environmentalists. [cf. last year’s […]

Screenshot of a trollbot account on Twitter, named “PrinceA06779972”, that was used to spread disinformation about climate science. The account was suspended on 25 November 2019. Graphic: DesdemonaDespair.net / Twitter

Revealed: quarter of all tweets about climate crisis produced by bots – “It is terrifying to ponder the possibility that the President of the United States was cajoled by bots into committing an atrocity against humanity”

By Oliver Milman 21 February 2020 NEW YORK (The Guardian) – The social media conversation over the climate crisis is being reshaped by an army of automated Twitter bots, with a new analysis finding that a quarter of all tweets about climate on an average day are produced by bots, the Guardian can reveal. The […]

Kathy Covington, center, watches the powerful floodwaters of the Pearl River rush through her Florence, Mississippi, yard on 16 February 2020. Photo: Barbara Gauntt / Clarion Ledger

“Historic, unprecedented” flooding swamps southern U.S. – Mississippi Governor declares state of emergency – “We do not anticipate this situation to end anytime soon. It will be days before we are out of the woods and the waters recede.”

By Doyle Rice, Luke Ramseth, and Wilton Jackson 17 February 2020 JACKSON, Mississippi (USA TODAY) – Weeks of heavy rain have inundated a large portion of the southern U.S., bringing near-record flooding to Mississippi and Tennessee. In Jackson, Mississippi, hundreds of residents either watched their homes flood over the weekend or worried their residence would […]

Spatial cumulative extents of the Deepwater Horizon (DWH) oil spill. (A) Cumulative NESDIS anomaly daily composites integrated from 20 April 2010 to 21 July 2010. Daily fishing closures are marked with gray lines; the cumulative fishing closure area is marked with a thick dashed yellow line. The black star represents the location of the DWH blowout. (B) Cumulative value of daily average oil concentrations (ppb), integrated across the same time span as (A) and across water depths. Vertical depth layers are 0 to 1 m, 1 to 20 m, and in 20-m increments down to 2500 m. Sediment and water samples with higher-than-background concentration are marked in bright green and dark blue circles, respectively. Red crosses in (B) represent approximate locations of DWH-related oil detections reported in previous studies. Daily fishery closures are marked with black polygons; the cumulative fishery closure area is marked with a dashed thick polygon. AB, Apalachee Bay; DP, Deep Plume; EFS, East Florida Shelf; FK, Florida Keys; LC, Loop Current System; TXS, Texas Shores; WFS, West Florida Shelf. (C) Categorization of the modeled oil spill are as follows: (i) nontoxic, PAH concentrations above background level and smaller than 0.5 and 1 ppb at the surface (depth, 0 to 1 m) and in the water column (depth, >1 m), respectively; (ii) toxic-to-biota and invisible, PAH concentrations 0.5 to 17 ppb at the surface and above 1 ppb in the water column; and (iii) toxic and visible, PAH concentrations above 17 ppb. In (C), categories were computed according to maximal concentrations across time. (D) Duration of toxic concentrations across the domain. (E) LC50 of 12 experiments examining the photoinduced toxicity to blue crab (31), fiddler crab (33), mahi mahi (29, 30), red drum (32), and speckled sea trout (32) (for more details, see table S2). (F) The spatial extent of the toxic concentrations from (E); color codes in (F) are according to bar colors in (E), representing concentrations exceeding LC50. In (F), toxic PAH of 0.5 ppb was concentrations were considered for surface waters only (depth, 0 to 1 m). Graphic: Berenshtein, et al., 2020 / Science Advances

The toxic reach of the Deepwater Horizon oil spill was much larger and deadlier than previous estimates – “Large areas of the Gulf of Mexico were exposed to invisible and toxic oil that extended beyond the boundaries of the satellite footprint and the fishery closures”

By Darryl Fears 12 February 2020 (The Washington Post) – The spread of oil from the Deepwater Horizon disaster in the Gulf of Mexico was far worse than previously believed, new research has found. As the worst offshore oil spill in U.S. history approaches its 10th anniversary in April, a study by two University of Miami researchers […]

Residents look on as flames burn through bush in Lake Tabourie, Australia, on 4 January 2020. Photo: Brett Hemmings / Getty Images

15 years after the Kyoto Protocol went into force, the climate crisis is worse than ever – “If the U.S. had been in from the start, it would have been a different trajectory altogether”

By Rosie McCall 16 February 2020 (Newsweek) – The Kyoto Protocol went to force a full 15 years ago today—and yet, the climate crisis is more urgent than ever. On Sunday, 15 years will have passed since the Kyoto Protocol was ratified on February 16, 2005, which was eight years after it was negotiated back […]

Average U.S. temperature for December and January combined, from December-January 1895-96 to 2019-20. Graphic: NOAA / NCEI

January 2020 sees warmest winter in U.S. history so far

By Bob Henson 6 February 2020 (Weather Underground) – The first two months of meteorological winter (December 2019 – January 2020) were the warmest on record for the contiguous U.S. in data going back to 1895. NOAA provided the January data and images on Thursday ahead of its monthly U.S. climate report. The average national temperature […]

Satellite view of tropospheric NO2 VCDs over the Permian basin for August 2018, seen from the Ozone Monitoring Instrument (OMI) and Tropospheric Monitoring Instrument (TROPOMI) aboard NASA and ESA satellites. OMI has a ground pixel size of 13 x 24 km2 and was gridded onto a 0.07 by 0.07 degrees latitude/longitude grid. TROPOMI has a footprint of 3.5 x 7 km2 and was averaged onto a 0.02 by 0.02 degrees latitude/longitude grid. The increased spatial resolution of the TROPOMI measurements is clearly visible. The red outline denotes the area used for the multivariate regression fits. Graphic: Dix, et al., 2020 / Geophysical Research Letters

Air pollution from oil and gas production sites visible from space – U.S. and European satellites help scientists measure nitrogen dioxide from drilling, production, and flaring

15 January 2020 (CIRES) – Oil and gas production has doubled in some parts of the United States in the last two years, and scientists can use satellites to see impacts of that trend: a significant increase in the release of the lung-irritating air pollutant nitrogen dioxide, for example, and a more-than-doubling of the amount […]

Fireflies in Smoky Mountains National Park. Photo: Radim Schreiber

Fireflies face extinction threats of habitat loss, light pollution, pesticides

By Mike Silver 3 February 2020 MEDFORD/SOMERVILLE, Massachusetts (Tufts Now) – Habitat loss, pesticide use and, surprisingly, artificial light are the three most serious threats endangering fireflies across the globe, raising the spectre of extinction for certain species and related impacts on biodiversity and ecotourism, according to a Tufts University-led team of biologists associated with […]

Email on 6 September 2019 from Craig McLean, NOAA’s acting chief scientist, to Weather Service and NOAA leaders, stating: “What’s next? Climate science is a hoax? Flabbergasted to leave our forecasters hanging in the political wind.” Graphic: NOAA / The Washington Post

New emails show how Trump roiled NOAA during Hurricane Dorian – “You have no idea how hard I’m fighting to keep politics out of science”

By Andrew Freedman and Jason Samenow 1 February 2020 (The Washington Post) – A trove of documents released on Friday evening provides the clearest glimpse yet into how President Trump’s inaccurate statements, altered forecast map and tweets regarding Hurricane Dorian’s forecast path rattled top officials along with rank and file scientists at the National Oceanic […]

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