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Researchers say world faces air pollution pandemic

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Air pollution is responsible for shortening people’s lives worldwide on a scale far greater than wars and other forms of violence, parasitic and vector-born diseases such as malaria, HIV/AIDS and smoking, according to an open-access study published in Cardiovascular Research. Household air pollution is from the indoor use of solid biofuels.

Pollution 438
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Carnegie study finds climate impact of particulates varies greatly depending on where the pollution originated

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However, aerosols have a much shorter lifespan in the atmosphere than the gases responsible for global warming, resulting in an atmospheric distribution that varies by region, especially in comparison to carbon dioxide. For example, aerosols from India cool their country of origin 20 times more than they cool the planet.

Climate 170
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Study measures the effect of regional change in clouds caused by ships’ emissions; masking GHG warming

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This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. New research led by the University of Washington (UW) is the first to measure this phenomenon’s effect over years and at a regional scale. Michael Diamond/University of Washington.

Emissions 223
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Study finds some improved cookstoves may emit more black carbon pollution than traditional mud cookstoves

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The first real-world, head-to-head comparison of improved cookstoves (ICs) and traditional mud stoves has found that some ICs may at times emit more of the black carbon particles that are linked to serious health and environmental concerns than traditional mud stoves or open-cook fires.

Pollution 231
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HEI: 95%+ of world’s population live in areas of unhealthy air

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Air pollution is the leading environmental cause of death worldwide according to the State of Global Air 2018 , the annual report and interactive website published by the Health Effects Institute (HEI). Comparison of 2016 annual average PM 2.5 All told, long-term exposure to outdoor and indoor air pollution contributed to 6.1

Pollution 218
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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 pollution also damages crops and other plants. Scenario A2 and RCP 8.5. Ozone formation.

Ozone 199
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Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

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They calculated emissions for ten cities (or metropolitan regions), which vary in population from 432,000 to 9,519,000; comparisons are in per capita terms. Authors of the study included: Christopher Kennedy, University of Toronto. Julia Steinberger, University of Klagenfurt. Barrie Gasson, University of Cape Town.

Emissions 199