Remove 2004 Remove Cleaner Remove Standards
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California ARB: GHG emissions fell below 1990 levels for first time in 2016; down 13% from 2004 peak; transportation emissions up 2%

Green Car Congress

The California Air Resources Board (CARB) announced that greenhouse gas emissions in California in 2016 fell below 1990 levels for the first time since emissions peaked in 2004—a reduction roughly equivalent to taking 12 million cars off the road or saving 6 billion gallons of gasoline a year.

2004 225
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UCR study finds ultra-low emission natural gas bus exceeds federal and state NOx standards; as low as 0.0007g/bhp-hr

Green Car Congress

A study by the University of California, Riverside College of Engineering Center for Environmental Research and Technology (CE-CERT) found that a Los Angeles County Metropolitan Transit Agency (Metro) bus equipped with an ultra-low emission natural gas engine performs significantly cleaner than its certification standards across all duty cycles.

Standards 199
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EPA, DOT and California align timeframe for proposing MY 2017-2025 light-duty vehicle fuel economy and greenhouse gas standards

Green Car Congress

The US Department of Transportation (DOT), the US Environmental Protection Agency (EPA) and the state of California have announced a single timeframe for proposing fuel economy and greenhouse gas standards for model year 2017-2025 cars and light-duty trucks. The EPA standard would be equivalent to 35.5 Earlier post.) mpg US (6.9

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NREL updates experimental cetane number data; more than 250 new individual measurements

Green Car Congress

A minimum cetane number is specified in the ASTM standard that defines the quality of diesel fuel sold in the United States. Values in the previous compendium (published in 2004) derived from octane numbers have been removed and replaced with a brief analysis of the correlation between cetane numbers and octane numbers.

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Measurements of CO2 and CO in China’s Air Indicate Sharply Improved Combustion Efficiency

Green Car Congress

A team of atmospheric scientists and environmental engineers from Harvard University and Tsinghua University in Beijing have continuously measured atmospheric CO 2 and carbon monoxide (CO) levels in rural Miyun, about 100 km northeast of Beijing, since November 2004.

CO2 199
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California ARB Seeks Further Reductions of Diesel Emissions at State Rail Yards

Green Car Congress

While current state and federal measures are on target to reduce toxic diesel locomotive emissions 65% or more by 2020, additional measures recommended by ARB staff would ultimately provide up to 85% or greater emissions reductions within the rail yards over the same period, resulting in cleaner air for nearby residential neighborhoods as well.

Diesel 170
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American Airlines to be launch customer for Boeing ecoDemonstrator program; flight testing a range of new technologies to reduce fuel consumption, emissions and noise

Green Car Congress

The two ecoDemonstrators will build upon the 2005 Quiet Technology Demonstrator (QTD2) program that helped both the Boeing 747-8 and 787 Dreamliner exceed international standards for noise emissions. Announced in 2010, the Boeing ecoDemonstrator Program is intended to reduce entry-to-market risk for new aviation technologies.

Emissions 191