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

Green Car Congress

Net positive RF (warming) contributions arise from CO 2 , water vapor, NO x , and soot emissions, and from contrail cirrus (consisting of linear contrails and the cirrus cloudiness arising from them). Both radiative forcing (RF) and effective radiative forcing (ERF) terms and their sums are calculated for the years 2000–2018.

Climate 448
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PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

Green Car Congress

Depletion of fresh water reserves [m 3 ]. Deterioration of the ozone layer [kg CFC-11-eq.]. The user also selects the country where the vehicles are to be used—because this differentiates the electricity mix for electric cars—as well as the year, between 2000 and 2050, when the cars will be registered.

Mariner 435
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UN Review of Recent Climate Research Concludes That Impacts Of Climate Change Coming Faster Than Anticipated

Green Car Congress

Losses of tropical and temperate mountain glaciers affecting perhaps 20-25% of the human population in terms of drinking water, irrigation and hydro-power. per year from 2000-2007. The hole in the ozone layer has had a cooling effect on Antarctica, and is partly responsible for masking expected warming on the continent.

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Study finds paved surfaces in Houston worsen air quality

Green Car Congress

Houston, with a mix of petrochemical facilities, sprawling suburbs, and traffic jams that stretch for miles, has some of the highest levels of ground-level ozone and other air pollutants in the United States. The article is in press in the Journal of Geophysical Research-Atmospheres , a publication of the American Geophysical Union.

Houston 247
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Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

Green Car Congress

HFCs are powerful greenhouse gases originally developed as substitutes for ozone-depleting chemicals. A binding legal agreement exists that can cut HFCs now—the Montreal Protocol ozone treaty—and many alternatives to HFCs have already been developed and are waiting for the right regulatory incentive from the Montreal Protocol to be deployed.

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California 2017 GHG inventory shows 1.2% total drop from 2016; transportation sector emissions up 1%

Green Car Congress

Changes in emissions by Scoping Plan sector between 2000 and 2017. Transportation sector emission sources include combustion of fuels utilized in-state that are used by on-road and off-road vehicles, aviation, rail, and water-borne vehicles, as well as a few other smaller sources. Compared to 2016, California’s GDP grew 3.6%

2017 230
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UNEP Report Calls for More Sophisticated Approach to Developing Biofuels; Limitations of Current LCA Studies

Green Car Congress

Here, RME show advantages for primary energy and GHG, but disadvantages in terms of acidification, eutrophication and ozone depletion. There is an obvious link between environmental impacts estimated by life-cycle impact assessments and water quality problems described at the regional scale. Source: “Assessing Biofuels”.

Ozone 186