Sentences with phrase «much methane in»

Has anyone commented that the past claims of «shallow hydrates» would imply the presence about 50x as much methane in the shallow sediments — compared to methane in water or air or sediment not in clathrate form?

Still, confirming this is difficult, says Turtle, «because there's so much methane in the atmosphere and so many hydrocarbons coating everything».

«There was so much methane in our water that when you turned the faucet on in the house, it was 90 percent air, the other 10 percent, maybe water,» he said.

Not exact matches

Even though the bulk of the added greenhouse gas effect in our atmosphere comes from carbon dioxide, methane — which is rarer — is much more potent.

A new peer - reviewed study discredits findings of controversial research claiming that higher concentrations of dissolved methane in domestic water wells can be associated with proximity to nearby gas - producing wells in northeastern Pennsylvania — and it does so using a much larger sampling size and pre-drill baselines.

No greenhouse gas has landed the oil and gas industry as much in the crosshairs of the federal government as methane.

The research adds one important data point to the ongoing question of how much methane, a greenhouse gas with a warming potential 25 times that of carbon dioxide, is emitted in the life cycle of natural gas production, transport and use.

«Methane concentrations in drinking water were much higher if the homeowner was near an active gas well,» explains environmental scientist Robert Jackson of Duke University, who led the study published online May 9 in Proceedings of the National Academy of Sciences.

In Alaska and eastern Siberia, she and her colleagues are cataloging the Arctic freezer's carbon contents, trying to understand how much will be converted to methane as the ice melts.

But McEwen and Ha found that they could use much lower operating temperatures and an inexpensive nickel catalyst in the presence of an electrical field to orient methane and water in a way that makes them easier to break apart.

For example, sequestrating short - lived climate pollutants, such as methane and black carbon, yields much faster reductions in global warming compared to reductions in CO2.

Whilst methane - burning is cleaner that other fossil fuels, any methane not burnt and released in the emissions from the engine has a much greater warming effect than oil - based fuel.

Cutting the amount of short - lived, climate - warming emissions such as soot and methane in our skies won't limit global warming as much as previous studies have suggested, a new analysis shows.

A 386,000 - square - mile tract of permafrost in Siberia contains as much as 55 billion tons of potential methane, Walter says — 10 times the amount currently in the atmosphere.

Taken together, they also provide a potential explanation for the so - called memory effect — the fact that «aqueous solutions in contact with methane form solid methane hydrate at a much faster rate if they have already undergone a methane hydrate formation - decomposition cycle,» said Alavi, almost as if the hydrate «remembers» its previous state.

Steve: Hydrogen is H2 but once you start with CO2 or CH4 with methane or H2O and water vapor or O3 in ozone, the fact that you have three atoms in your molecule gives you a much wider variety of vibrational modes to...

Potentially catastrophic amounts of methane lie trapped as so - called burning ices, or methane hydrates, in the permafrost beneath arctic tundra — as much as 10,000,000 teragrams still trapped compared with just 5,000 teragrams in the atmosphere today, according to Simpson.

Logically, say Howarth and other researchers interested in how much methane leaks to the atmosphere, a higher lost and unaccounted for percentage would mean more gas is escaping the system and warming the planet.

Another EDF - funded study is also underway in Boston, where Harvard University professor Steven Wofsy and others are working to use measurements of methane in the atmosphere above the city to determine how much of the gas is being released.

«We wanted to find out how much methane is released in a region and were looking for spatial patterns in gas emissions,» says lead author Katrin Kohnert from GFZ's section for Remote Sensing.

Although the concentration of carbon dioxide in the atmosphere is much higher, at around 385 parts per million, methane is a worry as it is much better than carbon dioxide at locking in heat from solar radiation.

But in the case of a big release of undersea methane, how much would escape the ocean to exert its greenhouse effects?

It also considers how much methane from landfills is currently captured in collection systems verses being released into the atmosphere.

There is so much methane that, as it freezes instantaneously to form hydrate, it draws all the water out of the seafloor ooze and dries it out completely — and often there is methane left over, trapped as large bubbles in the porous hydrate.

With compost, the model calculates how much methane is produced over time in landfills as organic materials decay.

So much methane accumulated in stagnant seas at the end of the Permian, he argues, that when it finally erupted, it ignited, setting most of the planet on fire.

U.S. Geological Survey researchers estimate that the Blake Ridge alone, off the South Carolina — Georgia coast, contains 30 times as much methane as Americans consume in natural gas every year.

A surprising recent rise in atmospheric methane likely stems from wetland emissions, suggesting that much more of the potent greenhouse gas will be pumped into the atmosphere as northern wetlands continue to thaw and tropical ones to warm, according to a new international study led by a University of Guelph researcher.

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.

«A bioreactor containing anaerobic methane and ammonium oxidizing microorganisms can be used to simultaneously convert ammonium, methane and oxidized nitrogen in wastewater into harmless nitrogen gas and carbon dioxide, which has much lower global warming potential.»

Anything we can do to figure out how much methane or ethane is in the crust is important.»

So some other process must destroy the methane much faster, Mumma and colleagues argued in Science in 2009.

Harvesting that landfill methane for use as a fuel also offers greenhouse gas reductions, since methane traps 23 times as much heat in the atmosphere as CO2 over a century.

«This allows for much higher efficiencies in conversion of methane to methanol than with zeolite catalysts previously reported.»

In a separate study, Katey Walter, an aquatic ecologist at the University of Alaska at Fairbanks, showed that much of this buried carbon may emerge as methane, a greenhouse gas some 20 times more powerful than carbon dioxide.

But based on that data, they estimate that emissions from abandoned wells represents as much as 10 percent of methane from human activities in Pennsylvania — about the same amount as caused by current oil and gas production.

Multiply the number of cows by that quantity, and that will essentially determine the bottom - up estimate of how much methane is emitted from cows in a year.

The strength of such a method, according to Miller, is that it provides a good measurement of how much methane is being emitted in total.

A new study in Canada has found that some hydroelectric reservoirs give off as much carbon dioxide and methane — the two most important causes of the man - made greenhouse effect — as coal - fired power stations producing a similar amount of electricity.

Although Charon is close in size to Pluto, it appears covered with water ice, whereas Pluto appears much redder and is blanketed in frozen nitrogen, methane, and carbon monoxide.

But if in the process the same carbon is converted from carbon dioxide to methane — a gas with a much higher impact on climate — it is then that we need to worry.»

That's bad news for the atmosphere when the gas in question is methane, the primary component in natural gas that is a much stronger greenhouse gas than carbon dioxide.

In the quest to head off rising global temperatures, some scientists have argued for steep curbs in how much soot and methane are released into the aiIn the quest to head off rising global temperatures, some scientists have argued for steep curbs in how much soot and methane are released into the aiin how much soot and methane are released into the air.

Marine geologist Karin Andreassen at CAGE, the study's lead author, says the data could hold lessons for retreating ice sheets in West Antarctica and Greenland, although her team could not determine how much methane actually escaped into the atmosphere from blowouts in the distant past.

Methane remains in the atmosphere one - tenth as long as CO2 — about a decade — but traps 20 times as much heat.

And that's why a group of scientists set out to better estimate how much methane is escaping in the U.S. To do that, they surveyed more than 200 sets of field measurements and scientific papers from the past 20 years to learn whether increasing use of natural gas could prove a climate boon or bane.

Landfills may be emitting more methane than previously reported because the Environmental Protection Agency may be drastically underestimating how much garbage is being deposited in landfills across the U.S., according to a new Yale University study.

But that study said it is uncertain how much hydrates contribute to the methane emissions, as opposed to other sources such as the decomposition of organic matter in permafrost as it thaws.

Methane turns out to be a major food item for sphagnum moss, accounting for as much as 15 % of the plant's carbon, the team reports 25 August in Nature.

The National Research Council in Washington, D.C., estimates that dairy cows account for as much as 20 percent of human - induced emissions of methane, a potent climate change — causing greenhouse gas.