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Harvard/Nanjing study: China’s war on PM2.5 pollution is causing more severe ozone pollution

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In early 2013, the Chinese government declared a war on air pollution and began instituting stringent policies to regulate the emissions of PM 2.5. Cities restricted the number of cars on the road, coal-fired power plants reduced emissions or were shuttered and replaced with natural gas. Over the course of five years, PM 2.5

Ozone 262
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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.

Ozone 199
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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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New research shows that household (indoor) and outdoor air pollution contribute to more than 5.5 In the context of the Global Burden of Disease 2013 study ( earlier post ), researchers from Canada, the United States, China and India quantified air pollution levels and attributable health impacts for 188 countries for the period 1990-2013.

Pollution 150
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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%. Sulfur dioxide is an air pollutant that causes acid rain, haze and many health-related problems.

India 170
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Low-lying and other vulnerable countries calling for fast action on non-CO2 global warming pollutants

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Led by the tiny Pacific island of the Federated States of Micronesia, a growing group of low-lying islands and other vulnerable countries are calling for fast action on the approximately 50% of global warming that is caused by pollutants other than carbon dioxide (CO 2 ). The next round of UN climate negotiations begins in Cancun today.