Sentences with phrase «high leakage rates»

High leakage rates, a short methane GWP, and comparison in terms of heat content are the inappropriate bases upon which Howarth et al. ground their claim that gas could be twice as bad as coal in its greenhouse impact.

It takes a far, far higher leakage rate to completely negate the benefits of switching, and even then you'd wind up coming out ahead from the switch a few decades after you stop using fossil fuels.

Researchers noted during a webinar presentation of the study's preliminary findings in July 2017 that it was the first time long - term continuous sampling of methane from natural gas activities had occurred, and that most existing studies that use aircraft data only sample for a limited number of days, usually only one to two, and often show a higher leakage rate.

Not exact matches

The ceramide - infused barriers were also rated higher for prevention of leakage and itching.

We find (i) measurements at all scales show that official inventories consistently underestimate actual CH4 [methane] emissions, with the natural gas and oil sectors as important contributors; (ii) many independent experiments suggest that a small number of «super-emitters» could be responsible for a large fraction of leakage; (iii) recent regional atmospheric studies with very high emissions rates are unlikely to be representative of typical natural gas system leakage rates; and (iv) assessments using 100 - year impact indicators show system - wide leakage is unlikely to be large enough to negate climate benefits of coal - to - natural gas substitution.

Unfortunately, I believe that the rest of the world on average will have higher methane leakage rates from the hydrofracking and transmission operations than for those in the USA; which I believe, will significantly increase methane concentrations in the atmosphere over the next several decades.

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.

«Our agricultural practices have always impacted water quality, but over the past century the mechanization of agriculture and the use of more potent fertilizers has caused a greater effect: the nitrogen leakage rate is higher....

However, because of the high global warming potential of methane (CH4, the major component of NG), climate benefits from NG use depend on system leakage rates.

And while Marcellus methane leakage rates may be incredibly low, that in no way implies that these rates are high elsewhere.

Pros: has one of highest R value ratings, adds structural rigidity to a frame, resistant to pests, most effective at reducing air leakage, a kit can be bought / rented to do installation as homeowner.

Multiple studies have indicated that natural gas is no better for the climate than coal when you consider the high rates of methane leakage in natural gas production and transport.

1 ton = ~ 7.3 barrels oil estimated Gulf oil leakage rate ~ 21600 barrels / day (5 - 40,000 depending on who's estimating) or 3000 tons / day methane emission = 1.5 e3 ton / day = 1.5 e9 g / day at 50 % methane by weight in the leak (probably a high estimate) Gulf area = 1.5 e6 km ^ 2 = 1.5 e12 m ^ 2 Gulf average depth = 1.62 e3 m Gulf volume = ~ 2.4 e15 m ^ 3

Then there's the high battery depletion rate under load, backlight leakage around the edges of the...