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Study finds rising temperatures increase risk of unhealthy ozone levels absent sharp cuts in precursors

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Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new work led by the National Center for Atmospheric Research (NCAR). Ozone formation. Even short periods of unhealthy ozone levels can cause local death rates to rise. Scenario A2 and RCP 8.5.

Ozone 199
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Fast action on black carbon, ozone and methane could help limit global temperature rise to 2 degrees C

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Fast action on pollutants such as black carbon, ground-level ozone and methane may help limit near term global temperature rise and significantly increase the chances of keeping temperature rise below 2 °C (3.6 °F)—and ventilation air from coal mines. Replacing coal by coal briquettes in cooking and heating stoves.

Ozone 218
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UNEP study: small number of measures targeting black carbon and tropospheric ozone could yield immediate climate benefits

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Widespread implementation is achievable with existing technology but would require significant strategic investment and institutional arrangements, the study found. Black carbon and tropospheric ozone are harmful air pollutants that also contribute to climate change.

Ozone 218
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UMD-led study finds China’s SO2 emissions down 75% since 2007, India’s up 50%; India may now be the top SO2 emitter

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Although China and India remain the world’s largest consumers of coal, a new University of Maryland-led study found that China’s sulfur dioxide emissions fell by 75% since 2007, while India’s emissions increased by 50%. Illustration: Chris McLinden, Environment and Climate Change Canada. Click to enlarge.

India 170
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Study finds household and outdoor air pollution contributes to more than 5.5 million premature deaths worldwide per year

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of all global deaths) caused by outdoor fine particulate air pollution and an additional 215,000 deaths from exposure to ozone. In China, burning coal is the biggest contributor to poor air quality. Our study highlights the urgent need for even more aggressive strategies to reduce emissions from coal and from other sectors.

Pollution 150
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Earth Day and the Importance of Green Energy

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In this celebration, we acknowledge the future of green technology is not only healthier for the planet and its residents, but more high-tech than more archaic, higher polluting options. However, Now we know that technology is not at odds with environmentalism; in fact, environmentally-friendly technology is created every day.

Green 52
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CICERO-led study finds global warming effect of leaked hydrogen almost 12x stronger than CO2

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The open-access paper is published in Nature Communications Earth & Environment. Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. We used five different atmospheric chemistry models and investigated changes in atmospheric methane, ozone and stratospheric water vapor.

Hydrogen 435