pollution – Page 17 – Desdemona Despair

Projected energy-related carbon dioxide emissions in the United States, 2020-2050. Graphic: EIA

February 15, 2021

EIA energy report explores impact of COVID-19 on U.S. energy mix through 2050 – Return to 2019 levels of U.S. energy consumption to take years – Energy-related CO2 emissions fall before leveling off or rising

By Ari Kahan 3 February 2021 (EIA) – The United States will likely take years to return to 2019 levels of energy consumption and carbon dioxide emissions following the impact of COVID-19 on the U.S. economy and global energy sector, according to projections in the U.S. Energy Information Administration’s (EIA) Annual Energy Outlook 2021 (AEO2021). […]

The central estimate of the CO2 rise forecast for 2020-2021 in the context of the frequency distribution of the observed annual rise for each year in the Mauna Loa record. The horizontal red bar shows the forecast uncertainty range of ± 0.55 ppm. Graphic: Met Office

January 9, 2021

Atmospheric carbon dioxide to pass iconic threshold in 2021 – “Emissions have now returned almost to pre-pandemic levels … The human-caused build-up of CO2 in the atmosphere is accelerating”

By Grahame Madge 8 January 2021 (Met Office) – In 2021, carbon dioxide in the atmosphere will reach levels 50% higher than before the industrial revolution, due to human-caused emissions, says a Met Office forecast. The Met Office predicts that annual average CO2 concentration at Mauna Loa Observatory, Hawaii, will be 2.29 ± 0.55 parts per million (ppm) […]

Return rates for Cedar River Sockeye salmon, 2014-2020. In 2020, the number of returning salmon declined to a record low. Data: Washington Department of Fish and Wildlife. Graphic: Mark Nowlin / The Seattle Times

January 1, 2021

Lake Washington sockeye salmon hit record low – “In a generation, we have gone from times of plenty to these fish being on the brink of extinction”

By Lynda V. Mapes 1 January 2021 (The Seattle Times) – They are as Seattle as the Space Needle. But Lake Washington sockeye, once the largest run of sockeye in the Lower 48, are failing. The smallest run on record returned to the Cedar River in 2020, a bottoming out after years of declines. There […]

A worker stands outside a construction site of the Xinzhuang coal mine that is part of Huaneng Group’s integrated coal power project, on 30 September 2020. Photo: Thomas Peter / Reuters

December 26, 2020

China rations electricity for millions – “The whole city was dark”

By Vivian Wang 21 December 2020 (The New York Times) – In the city of Yiwu in eastern China, the authorities turned off streetlights for several days and ordered factories to open only part-time. In coastal Wenzhou, the government ordered some companies not to heat their offices unless temperatures are close to freezing. In southern […]

GOES-17 satellite view of the largest known stratospheric smoke injection, from Australia wildfires, 2 January 2020. This photo shows the first phase (29-31 December 2019) of the Australian New Year Super Outbreak (Anyso), which had unprecedented fire and pyrocumulonimbus cloud (pyroCb) activity. this event was the first known pyroCb “super outbreak”, with 32 updrafts over ~45hrs (day and night). Previous events recorded less than 10 updrafts in less than 24 hours. Photo: CIRA

December 16, 2020

Towering pyrocumulonimbus clouds can spew as much aerosol as volcanic eruptions – The Australian 2019-2020 outbreak exceeded previously unprecedented events “on almost every level”

By Carolyn Gramling 15 December 2020 (Science News) – A massive tower of smoke generated by Australian wildfires in late 2019 set a new record for the loftiest and largest fire-spawned thunderstorms ever measured. It also may represent a new class of volcanic-scale “pyrocumulonimbus” events, scientists said in an online news conference 11 December 2020 at […]

The global COVID-19 lockdowns caused fossil carbon dioxide emissions to decline by an estimated 2.4 billion tonnes in 2020 - a record drop according to researchers at the University of East Anglia, University of Exeter and the Global Carbon Project. It means that in 2020 fossil CO2 emissions are predicted to be approximately 34 GtCO2, seven per cent lower than in 2019. Emissions from transport account for the largest share of the global decrease. Those from surface transport, such as car journeys, fell by approximately half at the peak of the COVID lockdowns. Total CO2 emissions from human activities - from fossil CO2 and land-use change - are set to be around 39 GtCO2 in 2020. Video: UEA

December 12, 2020

COVID lockdown causes record drop in carbon dioxide emissions for 2020

11 December 2020 (UEA) – The global COVID-19 lockdowns caused fossil carbon dioxide emissions to decline by an estimated 2.4 billion tonnes in 2020 – a record drop according to researchers at the University of East Anglia (UEA), University of Exeter, and the Global Carbon Project. The fall is considerably larger than previous significant decreases […]

Average daily CO2 emissions from 5 February to 6 May 2020 (red area) and average of the previous years during the same period (grey area) for three European cities. The dark grey horizontal bars cover periods of official lockdown, while the light grey bars indicate periods of partial lockdown or general restrictions (for example, school closures, reductions in personal contact, mobility constraints). Data: Integrated Carbon Observation System, 2020. Graphic: WMO

December 5, 2020

Carbon dioxide levels continue at record levels, despite COVID-19 lockdown – “The COVID-19 pandemic is not a solution for climate change”

GENEVA, 23 November 2020 (WMO) – The industrial slowdown due to the COVID-19 pandemic has not curbed record levels of greenhouse gases which are trapping heat in the atmosphere, increasing temperatures, and driving more extreme weather, ice melt, sea-level rise, and ocean acidification, according to the World Meteorological Organization (WMO). The lockdown has cut emissions […]

Environmental relevance of 6PPD-quinone. (A) Using retrospective UPLC-HRMS analysis of archived sample extracts, 6PPD-quinone was quantified in roadway runoff and runoff-impacted receiving waters. Each symbol corresponds to duplicate or triplicate samples, boxes represent first and third quartiles. For comparison, the 0.8 pg/L LC50 value for juvenile coho salmon and detected 6PPD-quinone levels in 250 and 1000 mg/L TWP leachate are included. (B) Predicted ranges of potential 6PPD-quinone mass formation in passenger cars (e.g., 4 tires, -36 kg tire rubber mass) and heavy trucks, (e.g., 18 tires, -900 kg of tire rubber) (represented in orange) and measured 6PPD-quinone concentrations in affected environmental compartments (represented in blue, with experimental data italicized). Predicted ranges reflect calculations applying 0.4-2% 6PPD per total vehicle tire rubber mass followed by various yield scenarios (1-75% ultimate yields) for 6PPD reaction with ground-level ozone to form 6PPD-quinone. Graphic: Tian, et al. / Science

December 4, 2020

Tire dust killing coho salmon returning to Puget Sound, new research shows – “I find it incredibly sad to watch the adults when they are sick”

By Lynda V. Mapes 3 December 2020 (Seattle Times) – First they circle. Then they gasp at the surface of the water. Soon they can’t swim. Then they die. For decades now, scientists have known something was killing beautiful, adult coho salmon as soon as they hit Seattle’s urban waters, ready to spawn. They had […]

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

December 2, 2020

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 […]

Wildfires light up a hillside behind the Bidwell Bar Bridge on 9 September 2020, as the Bear Fire burns in Oroville, California, in this photo taken with a slow shutter speed. Photo: Noah Berger / AP Photo

December 1, 2020

Photo gallery: In 2020, AP photographers captured a world in distress

By Jerry Schwartz 1 December 2020 (AP) – Behold, a world in distress: A 64-year-old woman weeps, hugging her husband as he lay dying in the COVID-19 unit of a California hospital. A crowded refugee camp in Lesbos, Greece, engulfed in flames, disgorges a string of migrants fleeing this hell on Earth. Rain-swept protesters, enraged […]