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

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Black carbon emissions and BC emissions intensity per year. A study led by a team from Peking University has estimated that global black carbon (BC) emissions increased from 5.3 teragrams per year in 2007 (+72%). Black carbon has two deleterious effects on the environment. Credit: ACS, Wang et al. Click to enlarge.

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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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US EIA Reports Record-setting 7% Overall Decline in US Carbon Dioxide Emissions in 2009; Transport Emissions Down 4.1%, Lowest Percentage Reduction of the End-UseSectors

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In 2009, energy-related carbon dioxide emissions in the United States saw their largest absolute and percentage annual decline (405 million metric tons or 7.0%) since the start of US Energy Information Administration’s (EIA) comprehensive record of annual energy data that begins in 1949. Source: EIA. Click to enlarge. between 2008 and 2009.

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GCP Carbon Budget Finds Anthropogenic CO2 Emissions Rose 2% in 2008 Despite Global Financial Crisis; Natural Sinks Not Keeping Pace With Increasing Emissions

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Despite the economic effects of the global financial crisis (GFC), carbon dioxide emissions from human activities rose 2% in 2008 to an all-time high of 1.3 tonnes of carbon per capita per year, according to a new paper published by an international team of 31 scientists in Nature Geoscience. over the previous seven years.

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U Chicago, MIT study suggests ongoing use of fossil fuels absent new carbon taxes

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A paper by a team from the University of Chicago and MIT suggests that technology-driven cost reductions in fossil fuels will lead to the continued use of fossil fuels—oil, gas, and coal—unless governments pass new taxes on carbon emissions. We need both a policy like a carbon tax and to put more R&D money into renewables.

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Australia PM Gillard announces carbon pricing plan; transport fuels exempt, but lowered fuel tax credits to bring carbon price to some businesses

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Australia Prime Minister Julia Gillard unveiled Australia’s carbon pricing plan—a core element in a new clean energy plan—in a short address to the nation. The Government intends to introduce legislation to underpin the carbon pricing mechanism into Parliament in the second half of 2011. Click to enlarge.

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Constant Ratio Of Airborne To Absorbed CO2 In Carbon Cycle May Indicate Resilient Carbon Sinks

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The analysis indicates that natural carbon sinks are maintaining overall resilience despite recent signs that the carbon uptakes of specific sinks are in decline. Approximately 40-45% of carbon emissions emitted every year remain in the atmosphere, with the balance absorbed as part of the Earth’s carbon cycle. per decade.

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