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EPA says methane emissions from natural gas production have dropped 36% from 2007-2011

Green Car Congress

In its recently released Inventory of US Greenhouse Gas Emissions and Sinks: 1990 – 2011 ( earlier post ), the US Environmental Protection Agency (EPA) reported that methane (CH 4 ) emissions from the field production of natural gas have declined by 36% from 2007 to 2011 (from 83.1 Tg or million metric tons CO 2 equivalent.)

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EPA, NHTSA issue One National Program Rule; EPA withdraws CA waiver for GHG and fuel economy

Green Car Congress

Specifically, in this action, NHTSA is affirming that its statutory authority to set nationally applicable fuel economy standards under the express preemption provisions of the Energy Policy and Conservation Act (EPCA) dictates that such state and local programs are preempted.

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EPA awards $5M to the Southern Alliance for Clean Energy (SACE) for cleaner big rigs

Green Car Congress

The US Environmental Protection Agency (EPA) has awarded $5 million to the Southern Alliance for Clean Energy (SACE) to help Southern truckers and small businesses to buy cleaner big rigs. The Clean Trucks Make Cents program will finance up to 100% of the purchase or lease of a pre-2007 tractor-trailer.

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Cal Energy Commission approves $1M grant to develop 12L near-zero NOx nat gas engine

Green Car Congress

The California Energy Commission approved a $1-million grant to develop a 12-liter natural gas engine that produces near-zero nitrogen oxide (NO x ) tailpipe emissions. grams per brake horsepower hour (g/bhp-hr), and constitute a 90% reduction of emissions compared to the previous standard (CARB 2007) of 2.0 to develop the engine.

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CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

Green Car Congress

2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. g/hp-hr between 2007 and 2009 to a level less than or equal to 0.20 Source: CRC. Click to enlarge. For a number of the most important pollutants, levels were substantially lower than required by regulations. Background. g/hp-hr in 2010.

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California Air Resources Board Unveils $3.7M in Rebates for Plug-in Hybrid and Zero-Emission Vehicles

Green Car Congress

million program that Governor Schwarzenegger approved in 2007 to spur technological innovation in the transportation sector. Cars and trucks account for over half of the emissions that contribute to ozone and particulate matter as well as about 30% of the total greenhouse gas emissions in California.

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Study finds power law scaling relationship between urban population and NO2 pollution

Green Car Congress

Even though larger cities are typically more energy efficient with lower per-capita emissions, more people still translates to more pollution.) This greater concentration occurs even though cities with higher populations have higher energy efficiency and, therefore, lower per capita NO 2 emissions. for India to 0.66 ppb (Europe), 0.68

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