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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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Black carbon and tropospheric ozone are harmful air pollutants that also contribute to climate change. Reducing black carbon and tropospheric ozone now will slow the rate of climate change within the first half of this century, the study said. °C (within a likely range of 0.2-0.7

Ozone 218
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EPA Climate Change Adaptation Plan sees likely increase in tropospheric ozone, with more difficulty in attaining NAAQS in many areas

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Among the many climate-related vulnerabilities that can impact its mission, the US Environmental Protection Agency (EPA) cites a likely increase in tropospheric ozone pollution as potentially making it more difficult to attain National Ambient Air Quality Standards ( NAAQS ) in many areas with existing ozone problems.

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Study Finds Ozone, Nitrogen Change the Way Rising CO2 Affects Earths Water

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Through a recent modeling experiment, a team of NASA-funded researchers have found that future concentrations of carbon dioxide and ozone in the atmosphere and of nitrogen in the soil are likely to have an important but overlooked effect on the cycling of water from sky to land to waterways. Credit: NASA.

Ozone 186
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HEI launches two new non-tailpipe particulate emission studies

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This study will measure concentrations of non-tailpipe (NTP) particulate matter across Toronto, Canada to determine how much non-tailpipe pollution people might breathe in everyday life and how to better measure these exposures in the future. Establish a bio-bank of samples to support future HEI-sponsored research in this area.

Emissions 353
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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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Researchers from MIT’s Laboratory for Aviation and the Environment have concluded that ground-level PM 2.5 Researchers from MIT’s Laboratory for Aviation and the Environment have concluded that ground-level PM 2.5 1,000 to 21,000) deaths due to changes in ozone concentrations. 900 to 11,000) ozone-related early deaths per year.

MIT 378
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European Parliament calls for fast action to cut non-CO2 climate forcers

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The European Parliament is calling for fast action to reduce non-CO 2 climate forcers including black carbon soot, hydrofluorocarbons (HFCs), methane, and ground-level ozone, which together are responsible for nearly half of climate forcing. Because these climate forcers are short-lived, reducing them produces a fast climate response.

Climate 225
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Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

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The researchers analyzed extensive satellite and ground-based measurements of nitrogen oxides and carbon monoxide. They found that levels of pollutants that can contribute to the formation of ground-level ozone, or smog, have failed to continue a fairly steady decline as estimated by the US Environmental Protection Agency.

Emissions 150