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

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Source: Wolfgang Knorr, Bristol University. The analysis indicates that natural carbon sinks are maintaining overall resilience despite recent signs that the carbon uptakes of specific sinks are in decline. While some aspects of the Earth’s “carbon budget” (e.g. While some aspects of the Earth’s “carbon budget” (e.g.

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Study finds global CO2 emissions back on the rise in 2010

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Global carbon dioxide emissions show no sign of abating and may reach record levels in 2010, according to a study led by the University of Exeter (UK). The study, which also involved the University of East Anglia (UK) and other global institutions, is part of the annual carbon budget update by the Global Carbon Project.

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Analysis of drill cores links variations in CO2 40M years ago to changes in global temperatures; questions as to the source of CO2

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Variations in atmosphere carbon dioxide around 40 million years ago were tightly coupled to changes in global temperature, according to new findings published in the journal Science. Algae use photosynthesis to harvest the energy of the sun, converting carbon dioxide and water into the organic molecules required for growth.

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USC team develops highly efficient catalyst system for converting CO2 to methanol; 79% yield from CO2 captured from air

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Researchers at Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, have developed a highly efficient homogeneous Ru-based catalyst system for the production of methanol (CH 3 OH) from CO 2 and H 2 in an ethereal solvent (initial turnover frequency = 70 h −1 at 145 °C). The work, led by G.K.

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Stanford Professor Urges EPA to Include Black Carbon in Endangerment Finding

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In testimony for the US Environmental Protection Agency (EPA) public hearing ( earlier post ) on the proposed endangerment finding for greenhouse gas emissions under the Clean Air Act ( earlier post ), Stanford Professor Mark Jacobson urged the EPA to include black carbon in the finding. Earlier post.). Earlier post.). Mark Jacobson.

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Study projects net cooling of climate from ship emissions through 2050

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In addition to CO 2 , other compounds such as ozone (O 3 ) precursors (nitrogen oxides (NO x =NO+NO 2 ), carbon monoxide (CO), and volatile organic compounds (VOCs)) and aerosols such as black carbon (BC) and organic carbon (OC) are emitted by ships. 1 of the total ship emissions in 2007. —Lud et al. —Lund et al.

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