Sentences with phrase «footprint of shale»

Friends of the Earth offered a quite nuanced view to the Energy and Climate Select Committe: «available data suggests that the carbon footprint of shale gas is smaller than that of coal used in electricity production, although it is higher than that of conventional gas.

«The large GHG footprint of shale gas undercuts the logic of its use as a bridging fuel over coming decades, if the goal is to reduce global warming.»

Compared to coal, the [climate] footprint of shale gas is at least 20 % greater and perhaps more than twice as great on the 20 - year horizon and is comparable when compared over 100 years.

Not exact matches

A report refutes a recent finding that extracting gas from deep shale basins results in at least as big a greenhouse gas emissions footprint as that of coal

Added Vengosh: «Our new study, which integrates data from multiple government and industry sources, provides the first comprehensive assessment of fracking's total water footprint, both nationally and for each of the 10 major U.S. shale gas or tight oil basins.»

The Howarth paper, «Methane and the greenhouse - gas footprint of natural gas from shale formations,» had estimated that leakage of gas from hydraulic fracturing operations (given that natural gas is mainly methane, a potent heat - trapping substance) and other factors made the climate impact of gas from such wells substantially worse than that of coal, measured per unit of energy.

However, in their recent publication in Climatic Change Letters, Howarth et al. (2011) report that their life - cycle evaluation of shale gas drilling suggests that shale gas has a larger GHG footprint than coal and that this larger footprint «undercuts the logic of its use as a bridging fuel over the coming decades».

When used to generate electricity, the shale - gas footprint is still significantly greater than that of coal at decadal time scales but is less at the century scale.

Using more reasonable leakage rates and bases of comparison, shale gas has a [greenhouse gas] footprint that is half and perhaps a third that of coal.

Original post In 2011, a Cornell research team led by the environmental scientist Robert Howarth published «Methane and the greenhouse - gas footprint of natural gas from shale formations,» a widely discussed paper positing that gas escaping from drilling operations using hydraulic fracturing, widely known as fracking, made natural gas a bigger climate threat than the most infamous fossil fuel, coal.

Using more reasonable leakage rates and bases of comparison, shale gas has a GHG footprint that is half and perhaps a third that of coal.

[xvi] RW Howarth, Santoro, R & Ingraffea, A, «Methane and the greenhouse - gas footprint of natural gas from shale formations», Climate Change, 2011, viewed 14 September 2012, http://www.eeb.cornell.edu/howarth/Howarth et al 2011.

The Energy Commission will continue to monitor the potential environmental impacts associated with shale gas extraction, including carbon footprint, volume of water use and risk of groundwater contamination, air pollution, and potential chemical leakage.