The sky on a beach on Gran Canaria in the Canary Islands is red from the worst sandstorm in 40 years, on 22 February 2020. Photo: Elvira Urquijo A. / EPA / Shutterstock

Sandstorm wreaks havoc in Canary Islands, worst such storm to hit the islands in 40 years – “I’m old enough to know all about the calima, but I don’t recall it that strong. Everything just turned red.”

By Raphael Minder 24 February 2020 MADRID – Winds from the Sahara continued to send streams of sand drifting over the Canary Islands on Monday, creating chaos as the swirling sands forced planes to be grounded, disrupted traffic and exacerbated wildfires. Ángel Víctor Torres, the regional president of the islands, a Spanish archipelago, told Spanish […]

These maps show nitrogen dioxide (NO2) values across China from 1 January 2020 to 20 January 2020 (before the quarantine) and 10 February 2020 to 25 February 2020 (during the quarantine). The data were collected by the Tropospheric Monitoring Instrument (TROPOMI) on ESA’s Sentinel-5 satellite. A related sensor, the Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite, has been making similar measurements. Graphic: Joshua Stevens / NASA Earth Observatory

Airborne nitrogen dioxide plummets over China as quarantine shuts down industry

By Kasha Patel 28 February 2020 (NASA) – NASA and European Space Agency (ESA) pollution monitoring satellites have detected significant decreases in nitrogen dioxide (NO2) over China. There is evidence that the change is at least partly related to the economic slowdown following the outbreak of coronavirus. At the end of 2019, medical professionals in […]

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 […]

Polygrapha suprema (Schaus, 1920), a rare and endangered butterfly exclusive to the high mountains of Atlantic Forest (Brazil), is threatened by habitat loss. Photo: Augusto Rosa

Half-a-million insect species face extinction – Scientists warn humanity about worldwide insect decline – “The current insect extinction crisis is deeply worrying. Yet, what we know is only the tip of the iceberg.”

By Marlowe Hood 10 February 2020 (PhysOrg) – Half of the one million animal and plant species on Earth facing extinction are insects, and their disappearance could be catastrophic for humankind, scientists have said in a “warning to humanity”. “The current insect extinction crisis is deeply worrying,” said Pedro Cardoso, a biologist at the Finnish […]

Breakdown of total fossil fuel support in PIDG, 2002-2018, by sub-sector ($USD). Data: Source: Private Infrastructure Development Group Annual Report 2018. Graphic: Global Witness

Obscure investment fund uses UK aid money to finance fossil fuel projects – “A farcical situation where the Government, on one hand, spends aid money to mitigate climate change, and on the other hand finances fossil fuels all over the world”

6 February 2020 (Global Witness) – We are at the beginning of a year of climate spin by the British Government. This year, the UK will host the 26th UN Climate Change Conference (COP26) in Glasgow. While the Government claims to be a ‘climate leader’, we reveal how a little-known investment group funded by the […]

Laurence Cowie on his property looking at the spreading bushfire in Canberra on 1 February 2020. Photo: Brook Mitchell / Getty Images

Plants safely store toxic mercury. Bushfires and climate change bring it back into our environment.

By Larissa Schneider, Colin Cooke, Nathan D Stansell, and Simon Haberle 29 January 2020 (The Conversation) – Climate change and bushfire may exacerbate recent mercury pollution and increase exposure to the poisonous neurotoxin, according to our study published in the Journal of Paleolimnology. Mercury stored in plants is released during bushfires, suggesting Australia is particularly at […]

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 […]

Storage tanks for radioactive water are seen at Tokyo Electric Power Co's (TEPCO) tsunami-crippled Fukushima Daiichi nuclear power plant in Okuma town, Fukushima prefecture, Japan on 15 January 2020. Photo: Aaron Sheldrick / REUTERS

Japan panel recommends ocean release for contaminated Fukushima water

By Aaron Sheldrick 31 January 2020 TOKYO (Reuters) – A panel of experts advising Japan’s government on a disposal method for radioactive water from the destroyed Fukushima nuclear plant on Friday recommended releasing it into the ocean, a move likely to alarm neighboring countries. The panel under the industry ministry came to the conclusion after […]

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 […]

Geese landing in the restored wetland on Viola Farm. Matt and Marilyn Spong own a corn-and-soybean farm, located on the Delmarva. Viola Farms has been in Marilyn Spong’s family for well over 150 years. About 15 years ago they started the process of restoring a wetland habitat on their property. Photo: Kayt Jonsson / USFWS / Flickr

America’s wetlands: vital, ignored, and now defined away by the Trump administration

By Geena Reed 27 January 2020 (UCS) – Last week, the Trump administration finalized its rollback of the expanded definition of the waters of the United States. Now fewer water bodies, including wetlands and ephemeral streams, will be protected under the Clean Water Act. The quality of more than half of the country’s wetlands and 18 percent of its […]

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