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PNNL modeling study finds climate benefit for cutting soot, methane smaller than previous estimates

Green Car Congress

Cutting the amount of short-lived, climate-warming emissions such as soot and methane won’t limit global warming as much as previous studies have suggested, according to a new study from the Joint Global Change Research Institute in College Park, Md., More realistic emission reductions would likely provide an even smaller climate benefit.

Climate 199
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What we don’t admit about carbon dioxide

Electric Auto Association

The fundamental green attribute of an EV is its ability to provide personal mobility without producing tailpipe emissions, delivering an unprecedented climate benefit even after accounting for all of its life-cycle emissions. Carbon dioxide seems perfectly benign Carbon dioxide has become a part of our daily lives.

Carbon 88
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NRC report finds that large-scale production of algal biofuels poses sustainability concerns; not a definitive barrier

Green Car Congress

However, these concerns are not a definitive barrier for future production, the report says; innovations that would require research and development could help realize algal biofuels’ full potential. The committee is not aware of any published studies that include measured emissions of air pollutants from open-pond cultivation.

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ICCT study examines current & projected use of heavy fuel oil in Arctic shipping; growth in BC emissions points to need for policies

Green Car Congress

A new study by the International Council on Clean Transportation (ICCT) estimates heavy fuel oil (HFO) use, HFO carriage, the use and carriage of other fuels, black carbon (BC) emissions, and emissions of other air and climate pollutants for the year 2015, with projections to 2020 and 2025. Click to enlarge. —Comer et al.

Oil 283
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EPA proposes stringent new emissions standards for light-, medium-, heavy-duty vehicles for MY 2027 and beyond

Green Car Congress

The proposal retains the proven regulatory design of previous EPA standards for light-duty vehicles, but leverages advances in clean car technology to further reduce both climate pollution and smog- and soot-forming emissions. Criteria pollutant standards.

EPA 210
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EPA issues final actions to cut methane emissions from municipal solid waste landfills

Green Car Congress

As landfill waste decomposes, it produces landfill gas (LFG)—a collection of air pollutants, including air toxics, volatile organic compounds, carbon dioxide, and methane. The NMOC portion of LFG can contain various organic HAPs (hazardous air pollutants) and VOCs (volatile organic compounds).

Waste 150
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Senators Kerry and Lieberman Release Details of Energy and Climate Bill; Incentives for Electric Drive and Natural Gas Vehicles

Green Car Congress

Chairman of the Homeland Security and Governmental Affairs Committee, released the details of their long-anticipated energy and climate change legislation on Wednesday, 12 May. A hard price collar binds carbon prices and creates a predictable system for carbon prices to rise at a fixed rate over inflation. Price Predictability.