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UCI-led study finds California’s strict air quality regulations have helped farmers

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They found that reductions in ground ozone during this 35-year period resulted in $600 million in increased production annually by the early 2010s. These aren’t the things that are providing the global population with its main source of calories. An open-access paper on the work appears in Nature Food. —Steven Davis.

Ozone 186
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California 2017 GHG inventory shows 1.2% total drop from 2016; transportation sector emissions up 1%

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Other notable highlights in the inventory include: For the first time since California started to track GHG emissions, in-state and total electricity generation from zero-GHG sources (for purposes of the GHG inventory, these include solar, hydro, wind, and nuclear) exceeded generation from GHG-emitting sources.

2017 230
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Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

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The exponentially increasing global market share of EVs has prompted research on their efficacy in reducing greenhouse gases, but comparatively little effort has focused on their impact on air quality. Among the findings: Summer surface ozone (O 3 ) decreases in most locations due to widespread reductions of traffic NO x emissions.

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HALO research aircraft measuring the emissions of megacities in EmeRGe project

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However, emissions do not just remain in conurbations; particles and gaseous pollutants can be transported thousands of kilometers by the wind. The University of Bremen is the scientific base of the international project known as EMeRGe (Effect of Megacities on the transport and transformation of pollutants on the Regional and Global scales).

Emissions 268
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WMO reports GHG concentrations at highest in 800K years

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Globally averaged concentrations of CO 2 reached 403.3 To optimize the use of solar, wind and hydropower production, new types of weather, climate and hydrological services are needed. Globally averaged concentrations for CO 2 reached 403.3 parts per million in 2016, up from 400.00 ppm in 2015.

2016 186
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Study Finds Asian Monsoon Carries Pollution Into the Stratosphere

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Arrows denote winds at this level derived from meteorological analysis, showing that the HCN maximum is linked with the upper tropospheric Asian monsoon anticyclone. The finding, published online 25 March in the journal Science , provides additional evidence of the global nature of air pollution and its effects far above Earth’s surface.

Pollution 246
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House Chairmen Waxman, Markey Release Draft of Energy and Climate Legislation; Among the Many Provisions Are Cap-and-Trade, Harmonization of CAFE and California Vehicle Regulations, and Low Carbon Fuel Standard

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The bill also establishes an interagency council to ensure an integrated federal response to adapting to the effects of global warming. Title III, Reducing Global Warming Pollution , (the cap-and-trade title), has eight subsections. Global Warming Pollution Reduction Program. light duty vehicles—e.g.,

Climate 186