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Comprehensive assessment concludes black carbon second-most important human emission in warming climate

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A comprehensive assessment of black-carbon climate forcing accepted for publication in the Journal of Geophysical Research: Atmospheres estimates that black carbon, with a total climate forcing of +1.1?W?m m -2 , is the second-most important human emission in terms of its climate-forcing in the present-day atmosphere.

Climate 322
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nanoFLOWCELL to present new QUANT F flow cell EV at Geneva

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Liechtenstein-based R&D company nanoFLOWCELL will present its new QUANT F electric vehicle at the upcoming Geneva show; the QUANT F is a further development of the QUANT E from 2014, the first automobile with flow cell drive to be approved by the German TÜV technical inspection authority. Earlier post.). This is unique.

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

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Seen together, the climate impact of these two factors is bigger than that of the sector’s carbon emissions. Here, we present a new comprehensive and quantitative approach for evaluating aviation climate forcing terms. Pitari, M.J. Prather, R. Sausen, L.J. 2020.117834.

Climate 448
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BIT team develops optimal control strategy for hydrogen engine; near-zero NOx with high power and BTE

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However, although hydrogen is carbon-free, eliminating many criteria pollutants, the emission of nitrogen oxides (NO x ) remains at a high level in DI hydrogen engines at high loads. In contrast, the present study focuses on a 2.0 On this basis, retarded ignition effectively reduces remaining emissions to near-zero with only a 2.5%

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Study finds that worldwide SO2 emissions rose between 2000-2005 after decade of decline; China, shipping topped growth

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Global sulfur dioxide (SO 2 ) emissions peaked in the early 1970s and decreased until 2000, with an increase in recent years due to increased emissions in China, international shipping, and developing countries in general, according to a new analysis appearing in the open access journal Atmospheric Chemistry and Physics. Credit: Smith 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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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.

Carbon 186
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EPA report to Congress finds a strong scientific and technical foundation for mitigating black carbon emissions

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The US Environmental Protection Agency (EPA) has submitted its final Report to Congress on Black Carbon , in response to an October 2009 request from Congress to advance efforts to understand the role of black carbon (BC) in climate change. —Report to Congress on Black Carbon. Source: EPA. Click to enlarge.

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