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EEA report: EVs are better for climate and air quality

Green Car Congress

Battery electric cars emit less greenhouse gases and air pollutants over their entire life cycle than petrol and diesel cars, according to a European Environment Agency (EEA) report. Emissions are usually higher in the production phase of electric cars, but these are more than offset by lower emissions in the use phase over time.

Climate 268
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State Department issues Draft Supplemental Environmental Impact Statement on Keystone XL Pipeline: climate change impacts

Green Car Congress

Comparison of proposed Keystone XL route to previously proposed project segment. Aside from the potential construction and spill impacts of the pipeline, the scope of the climate change impacts have become the most contentious and politicized issue surrounding the pipeline. Source: Draft SEIS. Click to enlarge. Click to enlarge.

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

Green Car Congress

The system will graph lifecycle impact for a range of specified powertrains, for a large number of impact categories: Climate change [kg CO 2 -eq.]. The top sample above shows climate change impact; the subsequent chart shows human toxicity. Sample results from Carculator. Depletion of fresh water reserves [m 3 ].

Mariner 435
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Study finds GHG emissions from corn ethanol now 46% lower than gasoline

Green Car Congress

A new study by a team from Environmental Health & Engineering (EH&E) has found that greenhouse gas emissions from corn ethanol are 46% lower than those from gasoline—a decrease in emissions from the estimated 39% done by previous modeling. gCO 2 e/MJ) which is 46% lower than the average carbon intensity for neat gasoline.

Gasoline 493
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Global Carbon Project: Global carbon emissions growth slows, but hits record high

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The findings are outlined in three new papers published in Earth System Science Data , Environmental Research Letters , and Nature Climate Change. By comparison, the average person in the United States is responsible for more than three-and-a-half times that amount. tons of fossil carbon dioxide emissions per year. Peters, R.M.

Carbon 195
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EPA annual inventory shows US GHG up 3.1% from 2017-2018

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This increase was largely driven by an increase in emissions from fossil fuel combustion, which was a result of multiple factors, including more electricity use greater due to greater heating and cooling needs due to a colder winter and hotter summer in 2018 in comparison to 2017. Source: EPA. >.

2018 243
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U. Mich study: natural-gas-based ICE, BEV and FCV all show promise for environmental benefits relative to conventional ICE

Green Car Congress

In addition to ensuring the same energy source, the analysis was conducted such that the same functional unit and system boundary are assumed for all of the three mobility options, to facilitate a direct comparison of their respective environmental footprints. Credit: ACS, Dai and Lastoskie. Click to enlarge. terrestrial acidification (TA).

Gas 218