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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 decrease in CO 2 equivalent emissions of ODSs (ozone-depleting substances: CFCs, halons, HCFCs, and others) may be offset by the projected increase in their non-ozone depleting substitutes (HFCs) (lines designated as HFC scenarios). The contribution of HFCs to climate forcing is currently less than 1% of all greenhouse gases.

Climate 287
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EPA proposes retaining current NAAQS for particulate matter

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The US Environmental Protection Agency (EPA) is proposing to retain, without changes, the National Ambient Air Quality Standards (NAAQS) for particulate matter (PM) including both fine particles (PM 2.5 ) and coarse particles (PM 10 ). EPA sets both an annual and a 24-hour standard for fine particles (PM 2.5 ). concentrations.

EPA 186
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Report argues advanced HD natural gas vehicles foundational for California to hit air and climate goals; near zero-emission potential

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Compared to the 2010 “Business as Usual” scenario—which includes all adopted emission control measures for the South Coast—NO x levels must be reduced by 65% and by 75% to meet the 2023 and 2032 ozone standards, respectively. California’s Climate Protection Strategies do not help meet NAAQS Standards.

Climate 257
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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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Air quality co-benefits are additional to climate benefits realized from reduced CO 2 emissions.). In a paper published in the journal Nature Climate Science , the MIT researchers took a systems-level approach to analyzing how climate policies influence air quality, focusing on US emissions of O 3 and PM 2.5

MIT 231
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US Climate Action Report to UN Projects 4% Growth in Total US GHG Emissions to 2020

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while the US GDP is projected to grow by 40%, according to the fifth National Communication on US climate change actions submitted by the US Department of State to the United Nations Framework Convention on Climate Change. The United States released previous Climate Action Reports in 1994, 1997, 2002, and 2006.

Climate 199
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California ARB greenlights states GHG cap-and-trade program

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The cap-and-trade program also works in concert with other measures, such as standards for cleaner vehicles, low-carbon fuels, renewable electricity and energy efficiency, and complements and supports California’s existing efforts to reduce smog-forming and toxic air pollutants.

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Up close and personal with Volkswagen’s e-Golf carbon offset project: Garcia River Forest

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Emission reductions produced by the project are verified by an approved third party and registered with the Climate Action Reserve (Project ID CAR102 ). TDI (diesel), both in the basic versions with standard equipment. ozone depletion potential (ODP). photochemical ozone creation potential. Click to enlarge.

Carbon 150