Sentences with phrase «other than methane»

Not exact matches

Saturn's moon Titan is the only moon in the solar system that has an atmosphere as thick as Earth's, consisting of more than 98 percent nitrogen, roughly 1.4 percent of methane, and smaller amounts of other gases.

A report in Nature stated that in some cases the escape of methane, a far more potent greenhouse gas than carbon dioxide, «could effectively offset the environmental edge that natural gas is said to enjoy over other fossil fuels.»

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.

Experts on greenhouse - gas emissions tell me that every time my car burns a gallon of gasoline, I am putting more than 25 pounds of carbon dioxide into the atmosphere as well as a smaller amount of methane, nitrous oxide, and various other toxic gases.

To get a different view, astronomer Giovanna Tinetti and her colleagues at the European Space Agency and University College London focused instead on the light grazing the atmosphere of HD 189733 b. Tinetti had predicted that water would absorb more light at the longer wavelength of 5.8 microns (thousandths of a millimeter) than at 3.6 microns, in contrast with other molecules such as methane and ammonia.

PERMAFROST may contain large amounts of methane and other organic gases at much shallower depths than was thought previously, say two Canadian geologists.

Given the vastness of the world's marine methane hydrate deposits — more than twice the carbon reserves of all other fossil fuels combined — it's not surprising that government agencies and the petroleum and natural gas industries have long been interested in harvesting this new energy supply.

Together the dumps emit more of the greenhouse gas methane than any other human - related source.

And the price of shale gas (and the methane found in coal deposits) has also been left freer of regulation than other energy prices, a bid to let the market decide cost and reward producers.

«I think, first, they are a significant concern because methane emissions are 70 percent more potent than other climate pollutants.

Part of this is due to the abundance of cows, but it is also because cattle emit greater quantities of methane and nitrous oxide than other animals.

«We haven't seen any evidence [of methane migration] other than the occasional local issue,» he says.

Allen's study found some sources of methane from natural gas activities were larger than EPA estimates, while others were lower (ClimateWire, Sept. 17).

While fracking has become a focal point in conversations about methane emissions, it certainly appears from this and other studies that in the U.S., fossil fuel extraction activities across the board likely emit higher than inventory estimates.»

In Boston, methane emissions from aging pipes and other sources may be more than double official state estimates for the city, according to a study published Thursday in the Proceedings of the National Academy of Sciences, which was led by a team of researchers and scientists at Harvard University.

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.

«Other studies have indicated that methane emissions follow a so - called «heavy - tailed» distribution, but what we're saying is that this pattern is widespread and even more extreme than previously thought,» Brandt said.

Does the domestic cow produce more methane than other grazing animals?

And finally, what about Mark's questions (# 3) and other factors not discussed here — do all these effects re Arctic ice lead scientists to believe there is a greater and / or earlier chance (assuming we continue increasing our GHG emissions — business as usual) of melting hydrates and permafrost releasing vast stores of methane into the atmosphere than scientists believed before the study, or is the assessment of this about the same, or scientists are not sure if this study indicates a greater / lesser / same chance of this?

Shakhova et al (2010) reports that the continental shelf of East Central Siberia (ECS), with an area of over 2 million km2, is emitting more methane than all other ocean sources combined.

The subsequent studies have produced a mixed bag of results, with some showing higher methane emissions than expected, and others lower.

And others believe clathrates of a whatever kind are already accelerating in their melt rates (which, paradoxically may show up better in atmospheric CO2 than methane since a recent study said 50 % of methane is converted to CO2 via methanogenesis, perhaps helping with the accounting re: last year's massive increase)...

Methane, a greenhouse gas more potent than carbon dioxide, is produced by cows and other livestock.

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 lowerinMethane 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 lowerinmethane leak rates are more than 3 percent of output, fracking of shale gas formations may be boosting greenhouse gas emissions rather than lowering them.

Thanks, but what is the evidence for your assertion that methane from «cow farts» is very much less important than other agricultural practices?

The degree of incorporation of an unknown number of gases and particles (not only CO2, methane, methyl bromide, CFC substitutes, and the other known as GHG) is not known, and we would need maybe more than a century to have an estimate; at the same time, new compounds would be incorporating in the atmosphere.

The Howarth paper, «Methane and the greenhouse - gas footprint of natural gas from shale formations,» had estimated that leakage of gas from hydraulic fracturing operations (given that natural gas is mainly methane, a potent heat - trapping substance) and other factors made the climate impact of gas from such wells substantially worse than that of coal, measured per unit of Methane and the greenhouse - gas footprint of natural gas from shale formations,» had estimated that leakage of gas from hydraulic fracturing operations (given that natural gas is mainly methane, a potent heat - trapping substance) and other factors made the climate impact of gas from such wells substantially worse than that of coal, measured per unit of methane, a potent heat - trapping substance) and other factors made the climate impact of gas from such wells substantially worse than that of coal, measured per unit of energy.

Do these papers address the fact that CO2 and methane will continue to enter the atmosphere through means other than human emissions?

More than 80 percent (perhaps more than 90 percent) of the increase in methane must come from other sources.

This is your hardest question to answer, as the question seems to presuppose their are other sources of heat that are warming up the earth other than global warming due to CO2, methane, nitrous oxide (from agriculture and fertilisers) and CFCs (chlorofluorocarbons, from refrigerants etc) accumulating in the atmosphere from mankind's various activities.

Others are a-biological, such as ocean degassing from the lower solubility of CO2 in warm versus cool water and also melting of methane clathrates (ice with trapped methane, which is more potent than CO2 as a greenhouse gas.

Insert, 10:08 p.m. Paul Shepson, the study's lead author and an atmospheric chemist at Purdue, said Derry's concern that the team was measuring coalbed methane coming from somewhere other than the gas wells was unfounded.

Wow, that's an interesting scientific approach to a new phenomenon, assuming that it's unique (there are now two other examples, by the way) assuming that the emissions were of gaseous methane under pressure rather than solid methane hydrate continuing to dissociate, assuming no methane flows in from surrounding areas, and so on.

And finally, what about Mark's questions (# 3) and other factors not discussed here — do all these effects re Arctic ice lead scientists to believe there is a greater and / or earlier chance (assuming we continue increasing our GHG emissions — business as usual) of melting hydrates and permafrost releasing vast stores of methane into the atmosphere than scientists believed before the study, or is the assessment of this about the same, or scientists are not sure if this study indicates a greater / lesser / same chance of this?

However, the U.S. has pledged to reduce emissions by 26 - 28 % from 2005 levels by 2025 in its internationally determined contribution (INDC) to the UN process, meaning that the US must make more than an additional 16 % reduction from fuel efficiency standards, energy efficiency programs, non-CO2 greenhouse gas (e.g. methane, hydrofluorocarbons) reductions, and other components of Obama's climate action plan in order to meet its INDC.

These bubbles form because methane is less soluble than other greenhouse gases.

They maintain that the actual forcings (which includes things other than just CO2) are closest to Hansen's scenario B. Remember this wasn't an exercise in predicting future CO2, methane, solar, volcanic, etc. forcings, but a prediction of what could happen under some hypothetical «high», «medium» and «low» forcing scenarios.

That's a cause for concern because, among other reasons, methane traps more heat than carbon dioxide, making it a more potent greenhouse gas and thus of concern for global warming, according to a study detailing the trip's findings and published recently in the journal Atmospheric Environment.

Methane covered a bigger chunk of the spectrum than CO2 and CFC's in particular had a wide band, one that wasn't covered by other gases.

This is because over the past three years, hundreds of new scientific field accounts of global warming's impacts, as well as improved peer - reviewed analyses of global warming itself in both the deep past and the very near future, have depicted earth's atmosphere as far more «sensitive» to the invisible CO2, methane and other human - sourced greenhouse gases than had been hoped.

Some of the budget estimates also make an allowance for the effects of anthropogenic emissions of warming gases other than CO2, such as methane.

On the other hand, heat released by the fire itself would likely be thousands of times less than heat produced by the greenhouse effect before the methane is oxidized into CO2.

While the greenhouse gas footprint of the production of other foods, compared to sources such as livestock, is highly dependent on a number of factors, production of livestock currently accounts for about 30 % of the U.S. total emissions of methane.316, 320,325,326 This amount of methane can be reduced somewhat by recovery methods such as the use of biogas digesters, but future changes in dietary practices, including those motivated by considerations other than climate change mitigation, could also have an effect on the amount of methane emitted to the atmosphere.327

Shakhova et al (2010) reports that the continental shelf of East Central Siberia (ECS), with an area of over 2 million km2, is emitting more methane than all other ocean sources combined.

And a second, entirely separate, study backed by US data suggests that emissions of that other greenhouse gas, methane, are at least 11 % higher than estimated in 2006.

«Methane migration through the 1 - to 2 - km - thick geological formations that overlie the Marcellus and Utica shales is less likely as a mechanism for methane contamination than leaky well casings, but might be possible due to both the extensive fracture systems reported for these formations and the many older, uncased wells drilled and abandoned over the last century and a half in Pennsylvania and New York [where they did their study]... More research is needed across this and other regions to determine the mechanism (s) controlling the higher methane concentrations we observed.Methane migration through the 1 - to 2 - km - thick geological formations that overlie the Marcellus and Utica shales is less likely as a mechanism for methane contamination than leaky well casings, but might be possible due to both the extensive fracture systems reported for these formations and the many older, uncased wells drilled and abandoned over the last century and a half in Pennsylvania and New York [where they did their study]... More research is needed across this and other regions to determine the mechanism (s) controlling the higher methane concentrations we observed.methane contamination than leaky well casings, but might be possible due to both the extensive fracture systems reported for these formations and the many older, uncased wells drilled and abandoned over the last century and a half in Pennsylvania and New York [where they did their study]... More research is needed across this and other regions to determine the mechanism (s) controlling the higher methane concentrations we observed.methane concentrations we observed.»

Methane produced by these microbial communities tends to have a lighter isotopic signature than that produced by other means, such as fossil fuel burning.

This is compounded by the fact that carbon dioxide stays active in the atmosphere much longer than methane and other greenhouse gasses.

Methane emissions are the source of the greenhouse gas which, after carbon dioxide, probably causes climatologists more sleepless nights than any of the other gases.

Methane gas is a greenhouse gas that is twenty times worse than any other greenhouse gas.