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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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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. The natural gas share of electricity generation has grown as the coal share declined, partially offsetting the decline in energy-related CO 2 emissions from coal. Transportation increase led by gasoline consumption.

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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The major contributors to the decrease in emissions from 2011-2012 were the decrease in energy consumption across all sectors in the US economy, and the decrease in carbon intensity for electricity generation due to fuel switching from coal to natural gas. in 2004, and since then have declined about 10%. from 1990 to 2012.

2005 252
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Annual Increase in Global CO2 Emissions Halved in 2008; Decrease in Fossil Oil Consumption, Increase in Renewables Share

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In addition to high oil prices and the financial crisis, the increased use of new renewable energy sources, such as biofuels for road transport and wind energy for electricity generation, had a noticeable and mitigating impact on CO 2 emissions. Coal consumption: lower increase due to financial crisis and more renewable electricity.

2008 170
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Sandia progressing to demo stage with supercritical CO2 Brayton-cycle turbines; up to 50% increase in efficiency of thermal-to-electric conversion

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Research focuses on supercritical carbon dioxide (S-CO 2 ) Brayton-cycle turbines, which typically would be used for bulk thermal and nuclear generation of electricity, including next-generation power reactors. The Brayton cycle could yield 20 MW of electricity from a package with a volume as small as four cubic meters.

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Energix Research Successfully Tests Micro GTL Process

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Energix Research , a developer of gas-phase catalysis processes, technologies and systems, says it has successfully produced gas-to-liquids (GTL) products using its electrically activated nanocatalyst process. The direct cost of producing electricity with this generator will be less than US$0.10 another spin-off from Catalyx, Inc.,