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EPA report to Congress finds a strong scientific and technical foundation for mitigating black carbon emissions

Green Car Congress

positive or negative—and magnitude of net climate forcing from BC emissions), currently available scientific and technical information provides a strong foundation for making mitigation decisions to achieve lasting benefits for public health, the environment, and climate. emissions in 2005. Earlier post.). Source: EPA.

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Test of Planet-Cooling Scheme Could Start in 2022

Cars That Think

Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Even less is understood about the potential risks to people and the environment—could the particles deplete the ozone layer, for example, or significantly alter the weather? cancel the launch.

Ozone 127
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Study Finds Current Swedish Biofuels Offer Major Climate Benefits; Biogas from Manure the Best

Green Car Congress

A study by researchers at Lund University in Sweden found that Swedish biofuels produce between 65 and 148% less greenhouse gas emissions than gasoline and diesel, even when direct and indirect land use changes are taken into account. 68% from biodiesel (RME). 68% from biodiesel (RME). There is a limit, but we are not there yet. ”.

Climate 170
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Sponsors of SAE Study Conclude HFO-1234yf Can Be Used As Low-GWP Global Replacement Refrigerant in MAC Systems

Green Car Congress

HFO-1234yf is a non-Ozone Depleting Substance with a Global Warming Potential (GWP) of 4. The results from the CRP1234 programs that investigated the new refrigerant for use in mobile air conditioning systems (cars and light trucks) are available on-line. Tags: Climate Change Emissions Vehicle Systems.

Global 186