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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. Utah Transit Authority.

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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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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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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.

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