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EIA: CO2 emissions from US power sector have declined 28% since 2005

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The power sector has become less carbon-intensive as natural gas-fired generation displaced coal-fired and petroleum-fired generation and as the noncarbon sources of electricity generation—especially renewables such as wind and solar—have grown. In 2005, noncarbon sources accounted for 28% of the US electricity mix.

2005 414
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Perspective: The Role of Offsets in Climate Change Legislation

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This article shows that including offsets in climate change legislation would likely make an emissions program more cost-effective by: (a) providing an incentive for non-regulated sources to generate emission reductions; and (b) expanding emission compliance opportunities for regulated entities. Assuming the offset is legitimate—i.e.,

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EIA: US energy-related CO2 fell by 2.8% in 2019, slightly below 2017 levels

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Overall, US energy-related CO 2 emissions have fallen 15% from their peak of 6,003 MMmt in 2007. in 2019, but power sector CO 2 emissions fell by even more (-8.2%), largely because of increases from renewable sources such as wind and solar. Total net electricity generation fell by 1.5%

2019 273
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California 2017 GHG inventory shows 1.2% total drop from 2016; transportation sector emissions up 1%

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Emissions from transportation sources were relatively constant from 2002 through 2007, declined through 2013, then increased by 9.0 In-State Hydro, Solar, and Wind Electricity Generation. The transportation sector represents tailpipe emissions from on-road vehicles and direct emissions from other off-road mobile sources.

2017 230
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Study Provides Evidence That Low-Level Clouds Act as Positive Feedback to Climate Change

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Other climate variables used in the analysis are sea surface temperature (SST), sea-level pressure (SLP) from the Hadley center, and vertical velocity, surface winds, and lower tropospheric static stability (potential temperature at 700 mb minus surface temperature) from the ERA-40 reanalysis. a positive feedback). Science Vol.

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EIA: US energy-related CO2 dropped 2.7% in 2015; of end-use sectors, only transportation increased

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These emissions were highest in 2007, prior to the recession, and have not returned to those levels, although they have increased since 2012. Wind and solar (combined) accounted for about 17% of non-fossil electricity generation in 2015 after rising from less than 1% in 2000 to 2% in 2005.

2015 150
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Technical brief: transportation overtaking electricity generation as the largest source of US CO2 emissions

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per year over 2007-2015 due to the displacement of coal by natural gas, wind and solar for power production as well as energy efficiency gains. Click to enlarge. Further, electric sector CO 2 emissions have dropped greatly in recent years, declining at an average rate of 2.8%