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UN: global e-waste surging; up 21% in 5 years

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million metric tonnes (Mt) of electronic waste was generated worldwide in 2019, up 21% in just five years, according to the UN’s Global E-waste Monitor 2020. of 2019’s e-waste was collected and recycled. According to the report, Asia generated the greatest volume of e-waste in 2019—some 24.9 A record 53.6

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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° 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. 1979); provincial data from the China Energy Statistics Yearbook (CESY) (1980?2007);

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Global CO2 emissions stalled for the third year in a row

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The annual assessment of global greenhouse gas (GHG) emissions by the JRC and the Netherlands Environmental Assessment Agency (PBL) confirms that CO 2 emissions have stalled for the third year in a row. Emissions from international transport (aviation and shipping) contribute another 3% to the total global GHG emissions.

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Cyclone Power Technologies Unveils Scalable Waste Heat Power Generator in $200 Million GE Challenge

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Cyclone Power Technologies unveiled its scalable waste heat power generator, called WHE/Generation ( earlier post ), in connection with the $200 million GE Ecomagination Challenge. Cyclone’s WHE/Generationsystem comprises its Waste Heat Engine, proprietary heat exchangers and electric generator.

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WVU study fully characterizes pump-to-wheels methane emissions from HD natural gas vehicles and fueling stations

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Researchers at West Virginia University have characterized pump-to-wheels methane emissions from heavy-duty (HD) natural-gas-fueled vehicles and the compressed natural gas (CNG) and liquefied natural gas (LNG) fueling stations that serve them. The gray boxes indicate the sources of methane emissions that are possible. Click to enlarge.

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Study finds PM from biodiesel blends may be 50-80% less toxic per unit PM mass than from petroleum diesel

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However, the relative toxicity of biodiesel emissions compared to petroleum diesel remains unclear. Error bars are one standard deviation from the mean, letters indicate statistical similarity. The inset compares the absolute statistical differences in DTT PM activity (nmol/min/mg PM ) between feedstocks for the same blend.

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Steep increase in global CO2 emissions despite reductions by industrialized countries; driven by power generation and road transport

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emissions from fossil fuel use and cement production per region. After a decline in global CO 2 emissions in 2009 of 1% (including a. correction for the leap year 2008), global emissions have. After a decline in global CO 2 emissions in 2009 of 1% (including a. correction for the leap year 2008), global emissions have.

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