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EIA: US electricity generation from coal and natural gas both increased with summer heat

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In August 2012, coal produced 39% of US electricity, up from a low of 32% in April 2012, when the natural gas share of generation equaled that of coal. The August coal share of generation is still notably lower than the 50% annual average over the 1990-2010 period. Source: EIA. Click to enlarge.

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EIA: US energy-related CO2 emissions in 2012 lowest since 1994; reflects drop in coal use

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US energy-related CO 2 emissions in 2012 were the lowest since 1994, at 5.3 The largest drop in emissions in 2012 came from coal, which is used almost exclusively for electricity generation. EIA will publish a full analysis of 2012 energy-related CO 2 emissions later this year. Duke study.

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EIA: US rail traffic reflects increase in crude oil production, decrease in coal use; coal still dominant

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The record increase in US crude oil production during 2012 and the significant decline in coal use for domestic electricity generation were reflected in the movement of those two commodities by rail last year, according to the US Energy Information Administration (EIA). Change in number of railcar loads 2011-2012.

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Study suggests China urban passenger transport emissions could peak in 2030

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A team of researchers in China suggest that, in the context of promoting the use of clean fuel vehicles and increasing vehicle fuel efficiency, CO 2 emissions of China’s urban passenger transport sector could reach a peak of 225 MtCO 2 in 2030. A paper on their study appears in the journal Energy Policy.

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Rice study finds using natural gas for electricity and heating, not transportation, more effective in reducing GHGs

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Rice University researchers have determined a more effective way to use natural gas to reduce climate-warming emissions would be in the replacement of existing coal-fired power plants and fuel-oil furnaces rather than burning it in cars and buses.

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EIA: US energy-related CO2 emissions down 1.7% in 2016; carbon intensity of economy down 3.1%; transportation emissions up

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Among the findings of the EIA analysis: CO 2 emissions form natural gas surpassed those from coal in 2016. Natural gas CO 2 emissions have increased every year since 2009. Of the four end‐use sectors, only transportation CO 2 emissions increased in 2016. Transportation increase led by gasoline consumption.

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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

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However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.