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Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

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Controlling soot from fossil fuels and solid biofuels may be a faster method of reducing Arctic ice loss and global warming than other options, including controlling CH 4 or CO 2 , although all controls are needed, according to a new study by Dr. Mark Z. Jacobson at Stanford University. Mark Jacobson.

Global 230
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New international Climate and Clean Air Coalition to focus on reduction of short-lived climate pollutants

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Global benefits from full implementation of measures for reduction of short-lived climate pollutants in 2030 compared to the reference scenario. The coalition will focus efforts on reducing black carbon, hydrofluorocarbons (HFCs), and methane. for 2030 and beyond. Source: UNEP. Click to enlarge. Earlier post.).

Climate 210
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NASA GISS Study Finds That Methane Has an Elevated Warming Effect Due to Interactions With Aerosols

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The 100-year global warming potentials (GWPs) for methane, CO, and NO x (per Tg N) as given in the AR4 and in this study when including no aerosol response; the direct radiative effect of aerosol responses; and the direct+indirect radiative effects of aerosol responses. Source: Shindell at al. Click to enlarge. Shindell et al.

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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. Carbon Capture and Sequestration. The draft promotes development of carbon capture and sequestration (CCS) technologies to establish a continuing place for coal in the US energy mix.

Climate 186
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North American Countries Target “Super” Greenhouse Gases Through Strengthened Ozone Treaty

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The US, Canada, and Mexico have submitted a proposal to strengthen climate protection under the Montreal Protocol— the international treaty that phases out the production of a number of substances responsible for ozone depletion. Uncontrolled growth of HFCs will offset the benefits of reducing carbon dioxide. Source: IGSD.

Ozone 170
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ARB releases proposed cap-and-trade regulation for comment; transportation fuels impacted in 2015

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The cap is enforced by requiring each source that operates under the cap to turn in one allowance or offset credit for every metric ton of carbon dioxide equivalent (MTCO 2 e) that it emits. The cap-and-trade program gives sources flexibility to make the most cost-effective choices about when and how to reduce emissions.

2015 210
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Volkswagen to use CO2 as refrigerant for future air conditioning systems

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The Volkswagen Group announced that it is choosing CO 2 as the future low global warming potential (GWP) refrigerant for its mobile air conditioning (MAC) systems. With a GWP (Global Warming Potential) value of 1, R744 is 99.3% It has a high cooling capacity and is available worldwide at low cost in the required qualities.

Future 311