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California ARB greenlights states GHG cap-and-trade program

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The cap-and-trade program also works in concert with other measures, such as standards for cleaner vehicles, low-carbon fuels, renewable electricity and energy efficiency, and complements and supports California’s existing efforts to reduce smog-forming and toxic air pollutants. Click to enlarge.

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Study finds global rivers and streams emitting 3x IPCC estimates of the GHG N2O

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Nitrous oxide is a potent greenhouse gas that contributes to climate change and stratospheric ozone destruction. The global warming potential of nitrous oxide is 300-fold greater than carbon dioxide; nitrous oxide accounts for some 6% of human-induced climate change, scientists estimate.

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Portable sensors enable monitoring of pollution on smart phones; inferring pollution maps with greater granularity

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A view of the inside of the CitiSense sensor: the three cylindrical components detect ozone, nitrogen dioxide and carbon monoxide. The CitiSense sensors detect ozone, nitrogen dioxide and carbon monoxide, the most common pollutants emitted by cars and trucks. —Nikzad et al. Click to enlarge.

Pollution 236
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USDOT FTA announces $182M in Low-No grants for transit vehicles & facilities nationwide

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The project also supports RTC’s efforts to transition its aging diesel bus fleet to zero emission vehicles to reduce energy consumption and greenhouse gas emissions in an area where ozone levels currently exceed air quality targets. New Mexico Department of Transportation. Golden Empire Transit District. Metro Transit (Minneapolis–St.

Grant 199
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UNEP Report Calls for More Sophisticated Approach to Developing Biofuels; Limitations of Current LCA Studies

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Here, RME show advantages for primary energy and GHG, but disadvantages in terms of acidification, eutrophication and ozone depletion. This is mainly as a result of carbon releases from the soils and land. Rapeseed biodiesel as an example of the varied environmental impacts of a particular biofuel. Source: “Assessing Biofuels”.

Ozone 186
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HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

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In their extensive analysis of the physical and chemical composition of the emissions, McDonald and colleagues found that the most abundant pollutants were carbon dioxide, carbon monoxide, NO, and NO 2. HEI’s evaluation of the four studies was conducted by a specially convened ACES Review Panel.

Exhaust 150
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SCOPE Biofuels Project Releases Assessment on Environmental Effects of Biofuel Technologies

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A few studies also include other relevant impact indicators as acidification potential, eutrophication potential, ozone depletion potential and various toxicity potentials. More specifically, only one third of the studies define an alternative land use reference system and calculate the carbon stock. Menichetti and Otto.