Sentences with phrase «methane leak rates»

Dr. Stanton's analysis identifies a range of possible emission rates associated with the project, taking into account uncertainty regarding methane leak rates and the lifecycle contribution of natural gas to greenhouse gas concentrations in the atmosphere.

The methane leak rates found in Pennsylvania were similar to those found in the atmosphere near natural gas fields in Utah's Uintah Basin and Colorado's Denver - Julesberg Basin, showing that methane leaks are widespread in natural gas fields across the country, the study says.

Brain research raises the possibility of a very exotic future (this article assumes that such animals wouldn't be vicious or use their new - found smarts to drive other species to extinction) «Liberated» mice from Italian lab now housed in poor conditions Methane leaks of shale gas may undermine its climate benefits: If methane leak rates are more than 3 percent of output, fracking of shale gas formations may be boosting greenhouse gas emissions rather than lowering them.

A new study provides one of the first quantitative estimates of the methane leak rate from the blowout of a natural gas well in California in 2015, suggesting that emissions from this event temporarily doubled those from all other sources in the entire Los Angeles Basin, including landfills, dairies, and other leaks.

Not exact matches

Shale: Water First, Leak Later: The Climate Benefits of Shale Gas Could Leak and Wash Awaydiscusses how methane leakage and water usage rates are eroding the climate argument for shale gas.

(Pipelines leak methane at much higher rates than previously understood, and methane is much more dangerous to the environment than carbon dioxide.)

Leakiness («leak rate») is defined as the amount of methane a company emits per unit of oil and gas it produces at all the oil and gas fields it operates in the United States.

New research to re-examine distribution system leak rates has been funded by the Environmental Defense Fund as part of a larger project to quantify lost methane from the natural gas system.

Methane release rates from a single leak were nearly double that of the entire rest of the Los Angeles region.

In the paper, the researchers showed that their system could image methane gas leaking from a tube about 1 meter from the camera with a video - rate imaging speed of approximately 25 frames per second.

The study concluded that the Bakken was leaking methane at a rate of 275,000 tons per year.

A University of Texas study found last year that natural gas wells leak methane at about the rate reported in U.S. Environmental Protection Agency methane emission inventories, and the leaks can be contained with emissions control technology.

«There's quite a bit of uncertainty and disagreement about what the actual leak rate is,» said Tom Moore, Western Regional Air Partnership Air Quality Program Manager for the Western States Air Resources Council in Fort Collins, Colo. «That makes it difficult to understand how much any particular regulation would reduce methane leakage.»

Then U.S. shale gas production could account for about 12 percent of the global methane increase over that time (it scales at approximately 4 percent of global increase per 1 percent leak rate).

Experts agree that methane leaked or vented from natural gas operations is a real concern, yet estimated emission rates vary greatly 3/4 from 1 to 8 percent of total production.

The data presented by Miller et al. constrains the overall leak rate from the oil and gas supply chains — providing an independently derived aggregate estimate of fossil fuel sources of methane emissions.

The actual leak rate is poorly known, but in any reasonable case U.S. shale gas production is a small, but not trivial, contributor to the global methane increase over the last several years.

The rate at which methane leaks into the atmosphere from natural gas production «is a critical question that we must answer,» say Reps. Henry Waxman and Bobby Rush, who have called on the chair of the House Energy and Commerce Committee... Continue reading →

A string of studies by the National Oceanic and Atmospheric Administration show that the core ingredient in natural gas, methane, is leaking at rates far higher than previously suspected.

Additional data taken in December found the leak rate had dropped, but overall, the site was spewing 40 to 64 tons of methane per hour.

To put that number in context, a recent peer - reviewed study found that methane leaks from Texas» Barnett Shale, a field that produces 7 percent of the nation's natural gas, had an average leak rate of 65 tons per hour.

EPA estimates that natural gas systems leaked about 1.2 percent of the methane that passed through them in 2012, but many recent studies suggest the rate may be much greater, perhaps 3 to 10 percent.

Though the rate of leak is such that it's not a huge climate risk, remember than methane is far more potent greenhouse gas than carbon dioxide, though it is much shorter lived in the atmosphere.

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