Sentences with phrase «of natural gas leaks»

[Robert Howarth, professor of ecology and environmental biology at Cornell University] is basing his conclusion on a preliminary analysis that includes not only the amount of carbon dioxide that comes out of a tailpipe when you burn diesel and natural gas, but also the impact of natural gas leaks.

For the new study, Brandt and his colleagues analyzed approximately 15,000 measurements from 18 prior studies of natural gas leaks from across the U.S. using a statistical technique called extreme value theory, which is useful for analyzing infrequent but highly consequential events.

Learn about the climate risks of natural gas leaks from drilling sites, processing plants, storage facilities, and pipelines.

Two prominent analysts of human - driven global warming have offered fresh criticisms of the way Anthony Ingraffea, a Cornell University engineering professor, has been portraying the contribution of natural gas leaks to climate change.

(In a related development, Lawrence Cathles, an earth and atmospheric sciences professor at Cornell University, sent me a fresh rebuttal to the Op - Ed article on the contribution of natural gas leaks to global warming by his colleague, Anthony Ingraffea (earlier critiques are here).

For the new study, Brandt and his colleagues analyzed approximately 15,000 measurements from 18 prior studies of natural gas leaks from across the U.S. using a statistical technique called extreme value theory, which is useful for analyzing infrequent but highly consequential events.

In both of those cities our team has mapped thousands of natural gas leaks block by block.

Residents barely had time to recognize the smell of a natural gas leak and to run with their loved ones.

Not exact matches

New natural gas pipelines do not face the same kind of opposition as oil pipelines because the product is a gas and, in case of a leak, it escapes into the atmosphere rather than fouling waterways and soil.

Estimates vary widely on just how much methane is leaked from the vast network of oil and gas wells, pipelines and processing plants, but the problem has cast doubt on how much better natural gas is than coal for the environment.

They should instead re-examine their practices that might have led to traces of, for example, diesel turning up in the Wyoming groundwater and come up with standards that would make leaks along the well bore impossible before less appropriate and more costly rules are thrust upon them at a time when natural gas prices are hitting 10 - year lows.

Capable of powering 15,000 homes, the system was conceived as part of a backup against projected energy shortages following a huge methane leak at a natural gas facility near Los Angeles.

Proponents argue it would boost New York's natural gas supply to help keep energy costs down while creating jobs and generating tax revenue, while opponents, who rallied this month ahead of the decision, say it would increase fossil - fuel use, harm sensitive ecosystems and put the state at inordinate risk of dangerous methane leaks.

While official results of the investigation have not yet been released, preliminary tests conducted by the National Transportation Safety Board have indicated that the blast was caused by a natural gas leak from a 127 - year - old pipe.

Additional evidence for this idea of super-emitters has been reported in other studies, said Steven Hamburg, chief scientist at the group Environmental Defense Fund, which is spearheading a set of studies on leaks from the natural gas supply chain.

The researchers took direct emissions measurements of 230 randomly selected, representative leaks from underground pipelines as well as at 229 metering and regulating stations where natural gas is measured and regulated from higher pressure pipelines to lower pressure distribution pipelines.

Methane, the main component of natural gas, is released from leaking pipelines, coal mines, oil wells, cattle, rice paddies and landfills.

The research team also located 75 natural sources of sulfur dioxide — non-erupting volcanoes slowly leaking the toxic gas throughout the year.

A «fat tail» of a few leaky wells This is often referred to as the «fat tail» or «super-emitter» problem, that just a small subset of wells or pieces of equipment is responsible for the majority of the leaks from the natural gas system (ClimateWire, Feb. 14).

She'd already had the local board of health to her home to test her tap water and check for natural gas leaks.

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.

Their report emphasizes the utility of rapid - response airborne chemical sampling in providing leak rate data, and it reveals how single vulnerabilities in the natural gas infrastructure can impact local and federal climate policies.

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.

In the January issue of Environmental Science & Technology the researchers described their efforts mapping nearly 5,900 natural gas leaks of varying severity across 1,500 road miles of Washington, D.C. To learn more about the state of the gas pipelines running through several major U.S. cities — in particular those serving New York City — Scientific American interviewed Robert Jackson, professor of environmental sciences at Stanford and Duke universities and the study's lead author.

If that number is significant, it could negate the climate benefit of natural gas — measured against coal — unless the leaks are plugged.

Leaks and explosions involving natural gas transmission and distribution pipelines in the U.S. cause an average of 17 fatalities, 68 injuries and $ 133 million in property damage annually, according to a study released earlier this year.

However, the colorless, odorless gas can be difficult to track and derives from a wide range of sources, from decomposing biological material to leaks in natural gas pipelines.

Environmental controls designed to prevent leaks of methane from newly drilled natural gas wells are effective, a study has found — but emissions from existing wells in production are much higher than previously believed.

Significant leaks of heat - trapping methane from natural gas production sites would erase any climate advantage the fuel offers.

Conflicting numbers The study was funded by a partnership of nine natural gas producers and the Environmental Defense Fund, a non-profit environmental group based in Washington DC, as part of a broad effort to trace methane leaks all the way from the wellhead to the user.

About a third of the factors used to estimate pipeline leaks and other natural gas emissions in the most recent inventory, for 2015, are based on a 1996 study by the EPA and an industry group then known as the Gas Research Institugas emissions in the most recent inventory, for 2015, are based on a 1996 study by the EPA and an industry group then known as the Gas Research InstituGas Research Institute.

Mapping methane plumes on the streets of Boston and San Francisco paints a picture of «clean» streets with few natural gas leaks, and more common «dirty» streets where methane concentrations can be more than 15 times global background levels.

U.S. EPA has begun the process of requiring natural gas companies to use «green completions,» a set of technologies and methods that allow for an efficient and leak - free transfer of natural gas from extraction wells to transport pipelines to the refineries or processors.

The trick to lowering natural gas's global warming quotient is to tighten up leaks in upstream operations, from extraction to use, say the authors of a World Resources Institute report released today.

Though focused on end uses of natural gas, the paper also shows how results are affected by highly uncertain leak rates from natural gas production and delivery.

Natural gas plants that leak a substantial amount of methane during their supply process can produce more warming than comparable coal plants.

After testing a sample of abandoned oil and natural gas wells in northwestern Pennsylvania, the researchers found that many of the old wells leaked substantial quantities of methane.

It is the main component of natural gas, but by 2014 there were mounting suspicions that a lot of it was leaking or being vented into the air over the production fields, rather than being shipped off to market.

«Low - cost imaging system detects natural gas leaks in real time: Infrared device enables reliable monitoring under a range of environmental conditions.»

EDF has been active in trying to quantify the amount of methane leaking from natural gas operations.

It was evidence that the Bakken was leaking raw natural gas, including huge amounts of methane, which is 86 times more potent as a global warmer than carbon dioxide during the first nine years of its life.

As natural gas booms nationwide, the amount of methane leaking from the natural gas system — from wellhead to homes — has become a hot - button issue.

That means the U.S. is likely leaking 2.25 percent, not 1.5 percent, of all the natural gas used, according to the new study, which helps explain why concentrations measured in the atmosphere keep rising above expected rates.

And there are other challenges associated with fracking for natural gas besides climate change, from what to do with the wastewater produced to drinking water contamination and even improperly drilled wells that leak or explode and get out of control (a blowout).

The key to sustainable use of natural gas is identifying and halting «super emitters» — valves or hatches that are stuck open, corroded holes in pipes or other major leaks — according to this study.

Just as oil and natural gas fields have been found to be emitting more methane than official government estimates suggest, a new study shows that more methane than previously thought may be leaking from the other end of that system — cities, where people actually use natural gas for heating and cooking.

«We're finding that when it comes to natural gas leaks, a 50/5 rule applies: That is, the largest 5 percent of leaks are typically responsible for more than 50 percent of the total volume of leakage,» said study co-author Adam Brandt, an assistant professor of energy resources engineering at Stanford's School of Earth, Energy & Environmental Sciences.

Advocates for cuts also see a chance to curb leaks of methane from natural gas production and distribution pipelines.

These kinds of leaks from production and transportation of natural gas resources have been well documented.

Impetus to address methane leaks directly should come from an ongoing study involving the gas industry and the Environmental Defense Fund, which aims to put hard numbers on the amount of methane lost across the natural gas supply chain.