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Emissions of potent GHG HFC-23 have grown, contradicting reports of huge reductions

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That the reduction has not materialized—and that global emissions have instead risen—is a puzzle, and may have implications for the Montreal Protocol, the international treaty that was designed to protect the stratospheric ozone layer.

Emissions 199
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MIT study finds air quality co-benefits of US carbon policies can significantly offset costs, depending upon the policy

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Selin and colleagues compared the health benefits to the economic costs of three climate policies: a clean-energy standard, a transportation policy, and a cap-and-trade program. In 2011, 231 counties in the US exceeded the EPA’s regulatory standards for ozone, the main component of smog. Climate Change Emissions Health Policy'

MIT 231
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Calif. ARB releases GHG scoping plan update; more ZEVs, “LEV IV”, MD and HD regulations; ZEV for trucks; more LCFS

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Mandatory regional criteria pollutant reduction targets will be established in the 2016 State Implementation Plans (SIPs) with expected reductions on the order of 90% below 2010 levels in the South Coast and similar reductions in the San Joaquin Valley by the year 2032. Transportation. —Draft Scoping Plan Update.

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California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

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SLCPs may account for an estimated 40% of global warming, increasing the impacts of climate change. The “Kigali Amendment” resulting from the annual Montreal Protocol Meeting of Parties in October 2016 in Kigali, Rwanda targets phasing down the production of HFCs globally.

Pollution 150