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HEI: 95%+ of world’s population live in areas of unhealthy air

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coal, wood, and dung) for cooking and heating. billion people—one in three global citizens—were exposed to household air pollution from the use of solid fuels (for example, coal, wood, charcoal, dung, or other biomass) for cooking and heating. In China in 2013, the leading source contribution to deaths attributable to PM 2.5

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MIT report finds China’s actions on climate change crucial; argues for global economy-wide greenhouse gas tax

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These scenarios show that, even more modest and realistic goals require near universal participation of major greenhouse gas emitters, Paltsev says. From 2000 to 2010, China’s energy use grew 130%, up from a growth of 50% the previous decade.

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Black carbon is a much larger cause of climate change than previously assessed; about twice previous estimates, and 2/3 the effect of CO2

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Emission rates of BC in the year 2000 by region, indicating major source categories in each region. Total global emissions of black carbon using bottom-up inventory methods are 7500 Gg yr -1 in the year 2000 with an uncertainty range of 2000 to 29000. Source: Bond et al. Click to enlarge. W m -2 (+0.17 W m -2 range). Bond et al.

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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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2000 (90% CI: 0–4,000) early deaths from ozone, according to the study. The largest impact was seen in the east-central United States and in the Midwest: Eastern power plants tend to use coal with higher sulfur content than Western plants. Barrett (2013) Air pollution and early deaths in the United States. related and ?2,000

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U Chicago, MIT study suggests ongoing use of fossil fuels absent new carbon taxes

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A paper by a team from the University of Chicago and MIT suggests that technology-driven cost reductions in fossil fuels will lead to the continued use of fossil fuels—oil, gas, and coal—unless governments pass new taxes on carbon emissions. for oil, 24% for coal, and 20% for natural gas. F of warming.

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Devil in the Details: World Leaders Scramble To Salvage and Shape Copenhagens UNFCCC Climate Summit

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The IPCC is expected to release revised reference emissions within the next few years, so that they can be used in the Fifth Assessment Report (AR5), slated for completion in 2013. Australia is the world’s largest exporter of coal and one of the world’s highest per-capita emitters of greenhouse gases.

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