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Rio Tinto and Alcoa announce world’s first carbon-free aluminum smelting process; Apple assist; Elysis JV to commercialize

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The conventional Hall–Héroult process (invented in 1886) for smelting aluminum involves dissolving alumina (Al 2 O 3 ) in molten cryolite, and electrolyzing the molten salt bath, typically in a purpose-built cell with carbon electrodes. Oxygen from the alumina combines with carbon from the anode to produce mostly carbon dioxide.

Carbon 186
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US EIA Reports Record-setting 7% Overall Decline in US Carbon Dioxide Emissions in 2009; Transport Emissions Down 4.1%, Lowest Percentage Reduction of the End-UseSectors

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Factors contributing to the 7% drop in emissions in 2009. While emissions have declined in three out of the last four years, EIA noted, 2009 was “ exceptional ”. In addition to a decline in gross domestic product (GDP) in 2009 of 2.4%, the energy intensity of the economy (energy consumed per dollar of GDP) declined 2.4%

2009 239
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DOE’s Carbon Utilization and Storage Atlas estimates at least 2,400B metric tons of US CO2 storage resource

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The United States has at least 2,400 billion metric tons of possible carbon dioxide storage resource in saline formations, oil and gas reservoirs, and unmineable coal seams, according to a new US Department of Energy (DOE) publication.

Carbon 250
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EPA publishes 16th national US GHG inventory; emissions in 2009 dropped 6.1%

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The final report shows overall emissions during 2009 decreased by 6.1% Total emissions of the six main greenhouse gases in 2009 were equivalent to 6,633 million metric tons of carbon dioxide. These gases include carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride.

2009 207
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EIA reports 5.8% year-to-year decline in US GHG emissions in 2009; 4.3% drop in transportation sector although vehicle miles travelled increased

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VMT rose slightly in 2009 while emissions from gasoline and diesel fuel declined, a result EIA attributes as a likely result of more efficient vehicles and increased consumption of biofuels. Total US greenhouse gas (GHG) emissions were 6,576 million metric tons carbon dioxide equivalent (MMTCO 2 e) in 2009, a decrease of 5.8%

2009 199
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China and India Nullify Global Reduction in CO2 Emissions in 2009

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Despite the continued economic crisis, global emissions of carbon dioxide, the main greenhouse gas, have remained constant in 2009 as strong increases in CO 2 emissions from fast-growing developing countries such as China and India, have completely nullified CO 2 emission reductions in the industrialized world. Source: PBL.

2009 199
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Study finds global carbon emissions reached 10 billion tonnes in 2010

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Global carbon dioxide emissions from burning fossil fuels have increased by 49% in the last two decades, according to the latest figures from the Global Carbon Project. Total emissions—including fossil fuel combustion, cement production, deforestation and other land use emissions—reached 10 billion tonnes of carbon (36.7

2010 239