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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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The human health benefits associated with improvements in air quality related to the reduction in greenhouse gas emissions improvements can offset 26–1,050% of the cost of US carbon policies, depending upon the type of policy, according to a new study by a team from MIT. times the cost of implementing a cap-and-trade program.

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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. CONCERNS REGARDING OFFSETS.

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Nature Materials editorial urges reconsideration of approach to battery regulation in Europe

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Making this battery technology more sustainable demands a consideration of the environmental and economic costs of extraction and transport of raw materials, manufacture, and increasingly of materials recycling and reuse at the end of a battery’s life. — Nature Materials editorial.

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Government of Canada to Regulate Greenhouse Gas Emissions from Vehicles; Prefers Harmonized North American Standard

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Canada has committed to reduce total greenhouse gas emissions by 20% from 2006 levels by 2020. These regulatory standards will be equivalent to applicable US national fuel economy standards. Whether or not the California standards yield higher improved environmental outcomes depends, frankly, on the mix of trucks and cars.

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California Adopts Low Carbon Fuel Standard, with Indirect Land Use Change Effects for Biofuels

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At its meeting on Thursday, the California Air Resources Board adopted a regulation that will implement Governor Schwarzenegger’s Low Carbon Fuel Standard ( earlier post ) calling for at least a 10% reduction from 2006 levels in the carbon intensity (measured in gCO 2 e/MJ) of California’s transportation fuels by 2020.

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Researchers say fuel market rebound effect can result in increased GHG emissions under RFS2; suggest taxes over mandates

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The US Renewable Fuel Standard (RFS2) is intended to reduce greenhouse gas emissions from transportation. This “fuel market rebound effect” can undermine climate change mitigation strategies, even to the point where efforts to reduce GHG emissions by increasing the supply of low-carbon fuels may actually result in increased GHG emissions.

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UN report projects that increasing use of HFCs likely to have a significant climate impact by 2050; equivalent to current total annual emissions from transport

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The contribution of HFCs to climate forcing is currently less than 1% of all greenhouse gases. However, levels of HFCs are rising as they replace HCFCs—HFC 134a, the most popular type, has increased in the atmosphere by about 10% per year since 2006. Climate and the Ozone Layer. —HFCs: A Critical Link in Protecting.

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