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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. pollution is falling, harmful ground-level ozone pollution is on the rise, especially in large cities. Over the course of five years, PM 2.5 But the rapid reduction of PM 2.5 1812168116.

Ozone 262
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Study: ozone levels higher across China than in other countries tracking the air pollutant

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In China, people breathe ozone-laden air two to six times more often than people in the United States, Europe, Japan, or South Korea, according to a new international study published in Environmental Science & Technology Letters. 2017 for one ozone metric. The inset shows ozone trends in Beijing (red) and Los Angeles (blue).

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ICCT study finds that transitioning to low-GWP MAC refrigerants in China could avoid up to US$150B in costs

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Among the findings of the report, “HFC-134a phase-out in the Chinese light-duty motor vehicle sector”, was that, considering the social cost of CO 2 e, up to 1 trillion RMB in costs (US$150 billion) required to address climate change could be avoided through 2050 by transitioning to low-GWP alternative MACs. Background.

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Study finds power law scaling relationship between urban population and NO2 pollution

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For example, in a Chinese city of 10 million people, the average outdoor ambient NO 2 concentrations are 100.66 = 4.6 The other regions that we examined exhibited smaller increases in NO 2 pollution with population, reflecting a combination of emission controls and per capita fuel use. times higher than in an average city of 1 million.

Pollution 261
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International study of role of soots impact on Arctic climate

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Scientists say much of the black carbon in the Arctic comes from biomass and fossil fuel burning in North America and Eurasia. A continuing decline in summer sea ice, warmer temperatures, changes in vegetation, and other indicators signal polar changes that affect the rest of the globe. Black carbon is contributing to this warming.

Climate 199
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Automakers agree on common plug to recharge electric vehicles

Tony Karrer Delicious EVdriven

@ Apr 19th 2009 4:54PM Or fuel cells (ex: hydrogen). By abstracting devices to use electricity as their fuel, we can concentrate on advancing clean electricity production techniques and have the benefits shared by everything. Some cars have them built-in, and they produce electricity too. Now where to get that pesky hydrogen.