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Smoke from Australian Wildfires Thinned Ozone Layer, Study Finds

Yale E360

Smoke from bushfires that spread across Australia in late 2019 and early 2020 destroyed high-altitude ozone in the Southern Hemisphere, according to a study that offers new insight into the threat posed by wildfires. Read more on E360 ?.

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Climate Change Threatens Already Poor Air Quality in California’s Central Valley

Union of Concerned Scientists

Bakersfield, Fresno, and Visalia are consistently ranked as cities with the worst particulate and ozone pollution , according to the American Lung Association. and ozone concentrations highlighting air quality issues in the Central Valley. Annual average PM2.5 Graphics from CalEnviroScreen 4.0

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Australia's Massive Wildfires Shredded the Ozone Layer--Now Scientists Know Why

Scientific American

Smoke from the catastrophic 2019–2020 fires in Australia unleashed ozone-eating chlorine molecules into the stratosphere

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Oil Refineries: A Deadly Industry

Union of Concerned Scientists

One good example of the nexus between global warming and local pollution is ground-level ozone. The 2019 explosion at the Philadelphia Energy Solutions (PES) refinery was in a unit which used hydrofluoric acid as a catalyst. To make matters worse, NOx contributes to the formation of ground-level ozone and secondary PM2.5,

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Progress Possible at COP 28 Despite Fossil Fuel Industry Deception

Union of Concerned Scientists

Global net anthropogenic greenhouse gas emissions 1990–2019. By 2019, the largest growth in absolute emissions occurred in carbon dioxide from fossil fuels and industry. As one example, according to an analysis by Client Earth , in 2019 Chevron’s disclosed emissions amounted to 697 million tons of carbon dioxide equivalent.

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Delivery Vans are Going Electric: Where and Why

Union of Concerned Scientists

Medium- and heavy-duty vehicles (MHDVs), like the big rigs on our highways and the vans that deliver our packages, make up just over 1 in 10 of the vehicles on our roads, but are responsible for over half of ozone-forming nitrogen oxide pollution and lung-damaging fine particulate pollution from on-road vehicles.

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Deciphering the ‘SPM AR6 WG1’ code

Real Climate

In addition, ozone depletion higher up in the stratosphere has caused a cooling high up in the atmosphere. Wm 2 over the period 1750-2019 because we have added extra greenhouse gases into Earth’s atmosphere. We humans have emitted a total of about 2390 gigatons of CO 2 over the period 1850-2019.