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Study estimates global black carbon emissions up 72% from 1960-2007; BC emissions intensity down 52%

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teragrams per year in 2007 (+72%). Improvements in combustion technology and changes in fuel composition had led to an increase in energy use efficiency, and subsequently a decline of BC emission intensities in power plants, the residential sector, and transportation. Click to enlarge. teragrams/year in 1960 to 9.1

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EPA proposes Renewable Fuel Standard (RFS) volumes for 2023-2025; seeking input on future modifications

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The US Environmental Protection Agency (EPA) issued a multipart proposal for required volumes of biofuel under the Renewable FUel Standard (RFS) for the next one to three years and on a series of modifications to the program. This proposal includes steady growth of biofuels for use in the nation’s fuel supply for 2023, 2024, and 2025.

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Perspective: The Role of Offsets in Climate Change Legislation

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For example, a covered source (an entity in the power generation, chemicals, steel, and cement industries) can make reductions beyond its compliance obligations and then sell these reductions as credits to other covered sources. Use of renewable sources would avoid emissions that would have been generated by fossil fuel combustion.

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UN Review of Recent Climate Research Concludes That Impacts Of Climate Change Coming Faster Than Anticipated

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Significant climate anomalies 2008/2009. Source: Climate Change Compendium. The growth in carbon dioxide emissions from energy and industry has exceeded even the most fossil-fuel intensive scenario developed by the IPCC at the end of the 1990s. per year from 2000-2007. Click to enlarge. Earlier post.).

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Copenhagen Diagnosis Released, Detailing Accelerating Indicators of Climate Change In Last Three Years

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A team of 26 climate scientists from Australia, Austria, Canada, France, Germany, Switzerland, the United Kingdom, and the United States have published the “Copenhagen Diagnosis”, an interim synthesis report on developments in climate change science from mid-2006 to the present day.

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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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These effects are calculated with climate models, but when possible, they are evaluated with both microphysical measurements and field observations. Predominant sources are combustion related; namely, fossil fuels for transportation, solid fuels for industrial and residential uses, and open burning of biomass.

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Pilot Project Sends Kelp–and Carbon–to the Seafloor

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The Climate Foundation , the Seattle-based company behind the project, has found that this deep cycling makes kelp grow three times as fast as it can when kept in shallow waters, as seaweed farmers do now. When he started this project back in 2007, von Herzen planned to pump deep water up to the kelp. But his concept has evolved.

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