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Black carbon is a much larger cause of climate change than previously assessed; about twice previous estimates, and 2/3 the effect of CO2

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Schematic overview of the primary black-carbon emission sources and the processes that control. the distribution of black carbon in the atmosphere and determine its role in the climate system. Accounting for all of the ways black carbon can affect climate, it is believed to have a warming effect of about 1.1

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Study: 2/3 of aviation climate impact due to emissions other than CO2

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This new study is based on a thorough review of a decade of research on aviation emissions. It makes an important contribution to the scientific understanding we have of the role of aviation for climate change—an understanding decision-makers and politicians may need on the way to achieving the goals of the Paris Agreement.

Climate 448
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PCAST suggests 6 key components for climate change strategy to President Obama; adaptation and mitigation

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The President’s Council of Advisors on Science and Technology (PCAST) released a letter to President Obama describing six key components the advisory group believes should be central to the Administration’s strategy for addressing climate change. Improving coordination and support for research efforts on climate change preparedness.

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T&E study finds plug-in hybrids show higher CO2 emissions than claimed

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Unless you drive them softly, carbon emissions can go off the charts. Selling plug-in hybrids makes it easier for carmakers to meet their EU car CO2 standards as PHEVs are currently given additional credits. T&E said the EU should end this weakening of the regulation when it reviews the targets for 2025 and 2030 next year.

Plug-in 243
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Singapore introducing stiff new feebate scheme for low carbon cars

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Singapore will implement a new Carbon Emissions-Based Vehicle Scheme (CEV) on 1 January 2012, providing rebates to qualified new cars, taxis, and imported used cars with low carbon emissions, and imposing an equivalent surcharge on higher emitting vehicles. The CEV will be applicable till 31 December 2014.

Singapore 277
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U-Mich researcher’s first-principles analysis challenges conventional carbon accounting for biofuels; implications for climate policy

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System boundaries (red line) schematic for liquid fuel carbon balance. For biofuels, because biogenic carbon is automatically credited within a product lifecycle, the boundary effectively excludes vehicle end-use CO 2 emissions. DeCicco 2013. Click to enlarge. —DeCicco 2013. A hierarchy for reducing CO 2 from transportation.

Climate 273
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EIA data shows ongoing trend of rising CO2 emissions from energy consumption after several years of decreases

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The September 2014 Monthly Energy Review (MER) published on Friday by the US Energy Information Administration (EIA) has provided more data to support a trend in rising CO 2 in the US that began in 2013. Climate Change Emissions' Sankey diagrams. Top: US Energy Flow, 2013 (quadrillion Btu). Source: EIA MER. Click to enlarge.

Emissions 239