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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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New inventory of black carbon emissions from China finds 2007 levels higher than previously reported

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BC emission map of China at 0.1° × 0.1° for year 2007. Major emission areas are marked. A new black carbon (BC) emissions inventory from China found BC emissions levels in 2007 of 1,957 Gg BC—higher than reported in earlier studies. Credit: ACS, Wang et al. Click to enlarge. Earlier post.).

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UMD-led study finds China’s SO2 emissions down 75% since 2007, India’s up 50%; India may now be the top SO2 emitter

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Although China and India remain the world’s largest consumers of coal, a new University of Maryland-led study found that China’s sulfur dioxide emissions fell by 75% since 2007, while India’s emissions increased by 50%. Illustration: Chris McLinden, Environment and Climate Change Canada. Click to enlarge. —Can Li.

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Trillium completes construction of largest hydrogen transit refueling station in North America

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The Santa Ana, California hydrogen station, which went live Friday, was jointly developed by Trillium, Air Products, the Center for Transportation and the Environment (CTE), Ballard Fuel Systems and New Flyer. Trillium has completed construction of the largest hydrogen transit refueling station in North America.

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India Releases GHG Report; Fifth Largest Emitter in 2007

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India has released a report on its greenhouse gas emissions in 2007, becoming the first “non-Annex I” (i.e. The country will also publish its emissions inventory in a two-year cycle going forward—the first developing country to do that as well. India GHG emissions by sector in 2007 (million tons of CO 2 eq).

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Latest UMTRI Eco-Driving Index shows 14% reduction of emissions per driver of newly purchased vehicles in US in April 2011 compared to October 2007

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Eco-Driving Index (EDI) and the two sub-indices (EDI d and EDI f ) for October 2007 through April 2011. In other words, the decrease in emissions comes despite only a slight reduction in vehicle kilometers traveled. Source: UMTRI. Click to enlarge. and 0.98, respectively. The EDI is computed by cross-multiplying EDI f and EDI d.

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Satellite study suggests California clean air regulations working to reduce PM2.5 emissions in state

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species, was recently published in the journal Atmospheric Environment. km-resolution MISR aerosol properties over Southern California for years 2001–2003, 2007–2009 and 2013–2015. km-resolution MISR aerosol properties over Southern California,” Atmospheric Environment , Volume 181, Pages 70-81 doi: 10.1016/j.atmosenv.2018.03.019.