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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.

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Satellite study: livestock digestion released 70% more methane than oil and gas industry in 2004

Green Car Congress

Livestock were the single largest source of methane gas emissions in the United States in 2004, releasing 70% more into the atmosphere than the oil and gas industry as estimated by other inventories, according to a new study by a team from Harvard University, JPL/CalTech and UC Irvine. emission inventory used as a priori.

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EPA Reports Fifth Consecutive Annual Increase in US New Vehicle Fuel Economy; Up 9% Since 2004, Back to Levels of Early 1980s

Green Car Congress

Adjusted CO 2 emissions and adjusted fuel economy by model year. For the fifth consecutive year, the US Environmental Protection Agency (EPA) is reporting an increase in new vehicle fuel efficiency with a corresponding decrease in average carbon dioxide emissions for new US cars and light duty trucks. mpg, or 9%, since 2004.

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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. The study, the Phase 2 Report of the comprehensive Advanced Collaborative Emissions Study (ACES). These reductions came while emissions of fine particles were also 92% lower than the 2010 standard 99% lower than 2004 emissions.

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EPA: US GHG emissions up 6% in 2021 from 2020

Green Car Congress

The US Environmental Protection Agency (EPA) released its 30 th annual Inventory of US Greenhouse Gas Emissions and Sinks (GHG Inventory), which presents a national-level overview of annual greenhouse gas emissions from 1990 to 2021. In 2021, US greenhouse gas emissions totaled 6,340.2 GHG emissions by economic sector.

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New data indicate 57% decline in carbon emissions resulting from 78% drop in deforestation In Amazon

Green Car Congress

Carbon emissions from deforestation in the Brazilian Amazon have dropped 57% from 2004 to 2011, according to new data recently released by the National Institute for Space Research (INPE) in São José dos Campos, São Paulo. Illegal logging in the Amazon peaked in 2004, when 27,700 square kilometers of forests were cleared.

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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

Green Car Congress

However, it has been blighted by very high unburned hydrocarbon (HC) emissions that, as a result of ever more stringent regulations, have caused it to be almost entirely forced out of the market in favor of four-stroke replacements. For one, the [California Air Resources Board] CARB-established limit of HC+NO x emissions in the 7.4

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