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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%

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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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New phase of globalization could undermine efforts to reduce CO2 emissions

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A new study finds that the growth of carbon production from Chinese exports has slowed or reversed, reflecting a “new phase of globalization” between developing countries that could undermine international efforts to reduce emissions. The paper is published in Nature Communications.

Global 170
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EPA: US greenhouse gases up 2% in 2013; increased coal consumption, cool winter

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Total US greenhouse emissions were 6,673 million metric tons of carbon dioxide equivalent in 2013, an increase of 2% (127.9 MMT CO 2 in 2004, and since then have declined about 13%. Climate Change Emissions' MMT CO 2 Eq.) Total US emissions have increased by 5.9% from 1990 to 2013. CO 2 emissions from LDVs totaled 1,028.0

2013 150
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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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These contributing factors included a decline in the carbon intensity of the energy supply (CO 2 /British thermal units [Btu]) of 1.7% Combining these two factors, the overall carbon intensity of the economy (CO 2 /GDP) declined by 3.1%. Although real gross domestic product (GDP) increased 1.5% along with a 1.4%

2016 150
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EPA: US GHG fell 0.5% y-o-y in 2017; power sector down by 4.2%, transportation up 1.21%

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This decrease was largely driven by a decrease in emissions from fossil fuel combustion, which was a result of multiple factors including a continued shift from coal to natural gas and increased use of renewables in the electric power sector, and milder weather that contributed to less overall electricity use.

2017 199
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EPA: US greenhouse gases dropped 3.4% in 2012 from 2011; down 10% from 2005 levels

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Greenhouse Gas Emissions and Sinks , which is submitted annually to the Secretariat of the United Nations Framework Convention on Climate Change, presents a national-level overview of annual greenhouse gas emissions since 1990. Carbon dioxide emissions from passenger cars and light-duty trucks totaled 1,061.0 Tg CO 2 Eq.

2005 252
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Measurements of CO2 and CO in China’s Air Indicate Sharply Improved Combustion Efficiency

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The findings, published in the 21 September issue of Atmospheric Chemistry and Physics , are generally consistent with official Chinese government statistics and could bolster their credibility as international negotiations proceed on commitments of China and other nations to combat climate change. —co-author J. Munger, J.

CO2 199