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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 Source: Bond et al.

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Perspective: The UN Approval Process for Carbon Offsets

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Since 2005, when major greenhouse-gas emitters among the Kyoto signatories were issued caps on their emissions and permitted to buy credits to meet those caps, there has been more than $300 billion worth of carbon transactions. The approval process for carbon offsets has two goals. THE APPROVAL PROCESS.

Carbon 255
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HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

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exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. The study exposed laboratory rats 80 hours a week, for up to 30 months, to emissions from a heavy-duty diesel engine meeting 2007 US EPA standards using new filters and other control technology.

Exhaust 150
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IEA: Estonia is pioneering technologies for more efficient and cleaner use of oil shale

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An article in the latest issue of IEA Energy: The Journal of the International Energy Agency reports that Estonia, which has the most developed oil shale industry in the world, is collaborating in pursuing wider use of oil shale in a cleaner, more sustainable manner. million tonnes emitted in 2007. Different that shale oil—i.e.,

Estonia 236
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Perspective: The Role of Offsets in Climate Change Legislation

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If a cap-and-trade program includes offsets, regulated entities have the opportunity to purchase the “emission credits” generated by carbon offset projects to help them meet their compliance obligations. In this way, offsets would complement the more traditional emissions trading that can occur between two covered sources.

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Devil in the Details: World Leaders Scramble To Salvage and Shape Copenhagens UNFCCC Climate Summit

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However, the slow pace of negotiations spurred UNFCCC delegates to publish a “roadmap to Copenhagen” in December 2007 at the 13 th Congress in Bali, in an effort to accelerate the progress of those negotiations.

Climate 236
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NYC Goes EV

Revenge of the Electric Car

From the article: ‘The New York study anticipates that by 2015, electric vehicle prices should decline because of reduced battery costs, that there will be a sufficient supply of electric vehicles to purchase, and that consumers will take advantage of the existing federal tax credit of $7,500 for new electric cars. by Lars Vercelli.