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WHO: 9 out of 10 people worldwide breathe polluted air; 7M deaths per year

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New data from the World Health Organization (WHO) shows that 9 out of 10 people breathe air containing high levels of pollutants. Updated estimations reveal a death toll of 7 million people every year caused by ambient (outdoor) and household air pollution. Ambient air pollution alone caused some 4.2 g/m 3 (for PM 10 ) and 10 ?g/m

Pollution 150
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Perspective: The Role of Offsets in Climate Change Legislation

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This article shows that including offsets in climate change legislation would likely make an emissions program more cost-effective by: (a) providing an incentive for non-regulated sources to generate emission reductions; and (b) expanding emission compliance opportunities for regulated entities. Assuming the offset is legitimate—i.e.,

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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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The climate change benefit is estimated for a given year (2050) and human health and crop benefits are. 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

Ozone 218
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International study identifies 14 key measures to reduce methane and black carbon emissions; reduction in projected global mean warming of ~0.5 °C by 2050

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Circle areas are proportional to values for (A and B) climate change, (C and D) human health (values for population over age 30), and (E and F) agriculture. The team considered about 400 emission control measures to reduce these pollutants by using current technology and experience. Source: Shindell et al. Click to enlarge.

Carbon 257
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WHO data: global annual PM10 increased by 6% during recent 3-year period; based on data from 851 cities

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Air quality in most cities worldwide that monitor outdoor (ambient) air pollution fails to meet World Health Organization (WHO) guidelines for safe levels, putting people at additional risk of respiratory disease and other health problems, according to WHO’s expanded ambient (outdoor) air pollution (AAP) in cities database 2014.

Global 239
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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). These gases come from human activities such as combustion of coal and oil as well as natural sources such as emissions from plants.

Ozone 199
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Test of Planet-Cooling Scheme Could Start in 2022

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This question of whether climate change becomes so bad that we have to do something to dull its impacts and reduce human suffering is a very big one,” says Keutsch, an atmospheric chemist. record levels , mostly because of the coal, oil, and natural gas that gets burned for electricity, heat, and transportation.

Ozone 121