Most of the
improvements in carbon intensity to date have come from efficiencies such as using larger trucks at mine sites, and the returns there are diminishing.
In the meanwhile, we're stuck with overly - simple approaches based on problematic metrics like, say, per - capita emissions, or rates of
decrease in carbon intensity.
So a 25 percent
drop in carbon intensity would still bring emissions levels that are almost twice as high as they are today.
For example, a facility that met its compliance target of 12 per cent
reduction in carbon intensity could still see overall emissions rise 76 per cent by doubling its oil output.
The California LCFS calls for at least a 10 % reduction from 2006
levels in the carbon intensity (measured in gCO2e / MJ) of California's transportation fuels by 2020.
«Nearly constant or slightly increasing
trends in the carbon intensity of energy have been recently observed in both developed and developing regions.»
«The consumption share of GDP has a very different carbon intensity, as a bundle of goods, relative to investment goods, so you automatically get a reduction
in carbon intensity from that trajectory,» Karplus says.
Generally, the export volume plays a dominated role in the change in Chinese exported emissions, with the improvements
in carbon intensity tempering the potential increases.
The 20 plus electrical grids and subregions of the US vary
widely in their carbon intensity, from over 1,700 lbs CO2e / MWh in the mid-west to ~ 650 lbs CO2e / MWh in New England and California.
[120] The sharp acceleration in CO2 emissions since 2000 to more than a 3 % increase per year (more than 2 ppm per year) from 1.1 % per year during the 1990s is attributable to the lapse of formerly declining
trends in carbon intensity of both developing and developed nations.
He also promised an unspecified cut
in carbon intensity — a measure of greenhouse gases emitted per widget produced.
«In an era of rapidly increasing economic growth and increasing carbon emissions, you can't assume that we're going to continue to see improvement
in carbon intensity,» Field says.
The LCFS regulation mandates a 10 % reduction
in the carbon intensity (CI) of transportation fuels used in California by 2020....
The Air Resources Board re-adopted a Low Carbon Fuel Standard (LCFS), which requires a 10 % reduction by 2020
in the carbon intensity of transportation fuels.
It also targets a reduction
in carbon intensity, or the amount of carbon produced per unit of GDP, of between 40 and 45 percent by 2020 compared with 2005.
The LCFS goal is a modest 10 % reduction
in carbon intensity by 2020, and if they hit that goal it means you would only need to offset 90 % of the gasoline you buy and burn.
In the run - up to Copenhagen they promised to achieve a 40 percent reduction
in carbon intensity.
«However, we equally desperately need to attend to the drivers of emissions in the developed economies, by vastly speeding up improvements (reductions)
in the carbon intensity of energy and the carbon intensity of the economy,» he said.
EU member states, including the UK, have supported a «70 - 100 %» reduction on 2008 emissions by 2050, and a 90 % reductions
in the carbon intensity of shipping.
Once approved by the Board, the ARB quantification methodology is intended to be used for accounting for potential reductions in compliance obligations for regulated entities in the Cap - and - Trade Program and is also being proposed under the Low Carbon Fuel Standard for reductions
in the carbon intensity of fuels produced in processes that employ CCS technologies.
While the deployment of nuclear (and hydro) at national scales for some countries can be safely said to have caused reductions
in carbon intensity, we err on the side of caution and refrain from claiming a causal connection at aggregated national levels.
In the United States, rising energy efficiency, rather than the use of less carbon - intensive energy sources, has driven the decline
in the carbon intensity of output.
Even if China could deliver larger reductions
in carbon intensity, China's absolute 2030 emissions could still be 10Gt, 40 % of the WEO 450 scenario carbon budget.