Sentences with phrase «percent leakage rate»

Even at a 1.2 percent leakage rate, natural gas companies would emit the same annual amount of greenhouse gases as 32 million cars or 40 coal - fired power plants.

From this value you can show that even at a huge and unprofitable 14 percent leakage rate, the methane still offers a factor of two reduction in greenhouse effect compared to coal.

Stefan Schwietzke, a research associate at the National Oceanic and Atmospheric Administration's Earth System Research Laboratory in Boulder, Colo., said Howarth may be overestimating methane emissions from shale gas because his 12 percent leakage rate estimate is based mostly on a single satellite study.

CREDIT: Shutterstock Satellite observations of huge oil and gas basins in East Texas and North Dakota confirm staggering 9 and 10 percent leakage rates of heat - trapping methane.

Not exact matches

If current estimates are correct that the leakage rate is around 3 percent, then we calculated that switching all coal plants to average - efficiency natural gas plants would have little effect on the power sector's contribution to climate change.

A leakage rate of 1 percent every decade could be «very serious,» he said, and would eventually lead to temperature spikes of about 3 degrees Celsius in the next century and a rise close to 4 degrees Celsius over the following 2,000 years.

While leakage rates of «fugitive methane» are currently around 4 percent according to EPA, they need to be at less than 1 percent of total production.

Nevertheless, write the authors, leakage rates in the production phase vary greatly from study to study, with one Cornell University Study placing the figure at 9 percent.

Methane lawsuit threat hangs over EPA's head Research by the Environmental Defense Fund has found that leakage rates must remain below 3.2 percent for natural gas power plants to carry a climate advantage over coal plants.

Methane leakage rates can and probably will be lowered substantially in the future.One study found that 70 percent of total leakage from 250 wells in Fort Worth, Texas, was occurring at only 10 percent of the wells, suggesting significant potential for low - cost, high - impact intervention.

But no matter what the leakage rate is, gas will still cut the climate impact by 50 percent in 2100 compared to new coal and 66 percent compared to existing coal.

EPA's recent Inventory of U.S. Greenhouse Gas Emissions and Sinks showed U.S. natural gas systems had a methane leakage rate of 1.2 percent in 2015 — which is 30 percent lower than global average.

The paper finds that just 1.2 percent overall methane emissions are attributable to the U.S. natural gas industry, based on the most recent EPA methane emission estimate of 1.2 percent of production, which is in line with a number of studies that find low U.S. leakage rates between 1 and 1.8 percent.

UT's sampling of well sites estimates the national leakage rate associated with the production phase of natural gas extraction to be equivalent to less than half of one percent of total natural gas produced.

Each of these EDF studies found leakage rates in the range of 1.2 and 1.6 percent, which is notable considering they were generally regarded to be the most comprehensive studies of their kind at the time they were released.

Cutting methane leakage rates from natural gas systems to less than 1 percent of total production would ensure that the climate impacts of natural gas are lower than coal or diesel fuel over any time horizon.