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Study finds damage due to premature mortality from PM2.5 decreased >20% from 2008 to 2014

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related damages, researchers from Carnegie Mellon University and Stanford have found that, US-economy-wide, gross external damage (GED) due to premature mortality has decreased by more than 20% from 2008 to 2014. GED was calculated for the 3 most recent NEI years: 2008, 2011, and 2014. In a new study of PM 2.5 Tschofen et al.

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Study finds rising temperatures increase risk of unhealthy ozone levels absent sharp cuts in precursors

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Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new work led by the National Center for Atmospheric Research (NCAR). Preliminary global mean CO 2 concentrations in February 2014 were 398.06 Ozone formation. Scenario A2 and RCP 8.5.

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Reduction in diesel carbonyl emissions using F-T fuel from coal

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However, the use of CFT resulted in a remarkable reduction in carbonyl emissions in comparison with using DF. lower ozone formation potential of the carbonyl compounds present than DF under the identical operating conditions. There was no significant difference in the profiles of total carbonyl emissions between CFT and DF. CFT had 16.5–44.1%

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ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

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Comparison of the potential reduction in emissions with the application of lower sulfur 0.5% MARPOL Annex VI sets limits on NO x and SO x emissions from ship exhaust, and prohibits deliberate emissions of ozone-depleting substances. fuel for Arctic vessels assuming a low-growth scenario. Source: ICCT. Click to enlarge.

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Up close and personal with Volkswagen’s e-Golf carbon offset project: Garcia River Forest

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In 2014, Volkswagen of America announced that starting with the launch of the zero-tailpipe emissions battery-electric 2015 e-Golf ( earlier post ), it would invest in projects to offset the carbon emissions created from the e-Golf on a full lifecycle basis: production, distribution and up to approximately 36,000 miles (57,936 km) of driving.

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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

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We estimate ozone and SOA formation potential. For the study, the team collected data from 82 light-duty gasoline vehicles spanning a wide range of model years (1988−2014); vehicle types (passenger cars and light-duty trucks); engine technologies (GDI and PFI); emission certification standards (Tier1 to SULEV), and manufacturers.

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Lifecycle study finds that environmental impacts of silicon-anode Li-ion battery could be roughly comparable with conventional Li-ion battery

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A conventional battery pack using graphite anode with the same capacity was the a basis for comparison of the life cycle impact results. The average US electricity mix was supposed for the battery charging and operations. The conventional battery pack had 36 modules; each module had 12 cells. —Li et al.

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