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UCL-led study finds climate impact caused by growing space industry needs urgent mitigation

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The rapidly growing space industry may have a greater climate effect than the aviation industry and undo repair to the protective ozone layer if left unregulated, according to a new study led by UCL and published in the journal Earth’s Future as an open-access paper. Locations and fuel types of rocket launches in 2019.

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Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

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Levels of two major air pollutants have been reduced significantly since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research. For comparison, columns over the same time periods are shown for 2019. —Guy Brasseur.

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Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

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Among the findings: Summer surface ozone (O 3 ) decreases in most locations due to widespread reductions of traffic NO x emissions. Across scenarios, we found the more cars that transitioned to electric power, the better for summertime ozone levels. Seasons and times of day. —Jordan Schnell. Schnell, Vaishali Naik, Larry W.

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California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

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The California Air Resources Board (CARB) has posted a revised draft of California’s proposed Short-Lived Climate Pollutant (SLCP) Strategy. SLCPs may account for an estimated 40% of global warming, increasing the impacts of climate change. —“Revised Proposed Short-Lived Climate Pollutant Reduction Strategy”.

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German-Chilean consortium investigating new ways of reducing arsenic in copper concentrates: ReAK

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However, climate change has caused an increase in rainfall in recent years, which now raises the issue of environmental contamination. The project officially began in September 2019 with funding from the German Federal Ministry of Education and Research. These calcium compounds are then deposited in the Atacama Desert.

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California ARB announces $24M grant solicitation for zero-emission truck and bus pilot commercial deployment projects

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microns or less (PM 2.5 ); and NO x emissions that lead to ozone and secondary PM. All work must be completed by 1 April 2019. Medium- and heavy-duty on-road trucks and buses are a significant source of emissions of greenhouse gases (GHG); diesel particulate matter 2.5 emissions, and 5% of GHG emissions.

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Here’s How We Could Brighten Clouds to Cool the Earth

Cars That Think

As we confront the enormous challenge of climate change, we should take inspiration from even the most unlikely sources. Take, for example, the tens of thousands of fossil-fueled ships that chug across the ocean, spewing plumes of pollutants that contribute to acid rain, ozone depletion, respiratory ailments, and global warming.