Sentences with phrase «as emissions of methane»

Not exact matches

Chris Severson - Baker, Alberta director of the Pembina Institute, said reducing methane emissions is critical because the gas is 25 times more potent as a climate warming agent than carbon dioxide.

Combining the generation data, project location, and eGRID emissions factor, NEC estimated the amount of carbon dioxide, methane, and nitrous oxide (measured together as metric tons of CO2 Eq.)

As one of the group's leaders, Hsu Jen - hsiu, rightly says eating less or no meat is a way to love our planet because livestock emit large volumes of methane into the atmosphere, which contribute more to global warming than the emissions produced by all the vehicles around the world.

Reduction of non-carbon dioxide (CO2) emissions from industrialized agriculture systems, such as methane (CH4) and nitrous oxide (N2O)

The livestock methane research includes development of algae - based functional foods for reducing intestinal methane emissions from ruminants (such as cattle, sheep, goats and deer).

The livestock industry notes that if some or most of the methane could be incorporated into the animal's nutrition processes, rather than being emitted, this would increase productive weight gain at the same time as cutting greenhouse gas emissions, for a double bonus effect.

However, newer research has shown that GHG emissions such as atmospheric methane have risen rapidly since 2007, according to a 2016 study published in the International Journal of Science.

Reducing food waste also impacts climate change as 20 percent of total U.S. methane emissions come from landfills.

Reducing food waste is important as it keeps food out of landfills, reduces emissions of methane, and has other environmental impacts.

Overall, the new measures would lower global anthropogenic emissions of methane by 50 % and of black carbon aerosols, also known as soot, by 80 %.

«There are also other important measures to reduce methane emissions from coal mining, municipal waste treatment and gas distribution, for example, as well as black carbon emission reductions through elimination of high - emitting vehicles, use of cleaner biomass cooking and heating stoves, replacement of kerosene wick lamps with LED lamps and other measures,» adds Zbigniew Klimont of the International Institute for Applied Systems Analysis, Austria, who also took part in the study.

Most carbon emissions linked to human activity are in the form of carbon dioxide gas (CO2), but other forms of carbon include the methane gas (CH4) and the particles generated by such fires — the tiny bits of soot, called black carbon, and motes of associated substances known as brown carbon.

In late March, the Obama administration released guidance directing U.S. EPA to address methane emissions from the oil and gas industry, after a number of studies measuring emissions from the air, known as «top - down» measurements, showed that the agency's emissions estimates for the industry were too low (ClimateWire, March 31).

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.

«Cutting back only on soot and methane emissions will help the climate, but not as much as previously thought,» said the study's lead author, climate researcher Steve Smith of the Department of Energy's Pacific Northwest National Laboratory.

Sir Andy Haines, Professor of Public Health & Primary Care at the London School of Hygiene & Tropical Medicine, and study co-author, said: «This paper shows how heat related deaths will escalate in the absence of decisive action to reduce the emissions of carbon dioxide and short - lived climate pollutants such as methane and black carbon.

As a result, methane emissions have distinct isotopic values: Methane emitted from any microbially driven source such as wetlands or agriculture have values of about -60 ‰ (signifying a relatively low ratio of carbon - 13 to carbon - 12); oil, gas, and coal emissions have an average carbon isotopic value of -37 ‰; and tree and crop burning averages about -22 As a result, methane emissions have distinct isotopic values: Methane emitted from any microbially driven source such as wetlands or agriculture have values of about -60 ‰ (signifying a relatively low ratio of carbon - 13 to carbon - 12); oil, gas, and coal emissions have an average carbon isotopic value of -37 ‰; and tree and crop burning averages aboutmethane emissions have distinct isotopic values: Methane emitted from any microbially driven source such as wetlands or agriculture have values of about -60 ‰ (signifying a relatively low ratio of carbon - 13 to carbon - 12); oil, gas, and coal emissions have an average carbon isotopic value of -37 ‰; and tree and crop burning averages aboutMethane emitted from any microbially driven source such as wetlands or agriculture have values of about -60 ‰ (signifying a relatively low ratio of carbon - 13 to carbon - 12); oil, gas, and coal emissions have an average carbon isotopic value of -37 ‰; and tree and crop burning averages about -22 as wetlands or agriculture have values of about -60 ‰ (signifying a relatively low ratio of carbon - 13 to carbon - 12); oil, gas, and coal emissions have an average carbon isotopic value of -37 ‰; and tree and crop burning averages about -22 ‰.

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.

Aggressive measures to curtail the use of fossil fuels and emissions of so - called short - lived climate pollutants such as soot, methane and HFCs would need to be accompanied by active efforts to extract CO2 from the air and sequester it before it can be emitted.

On Tuesday, the governments of California and six other western states as well as four Canadian provinces proposed a new plan to cut greenhouse gas emissions by 15 percent below 2005 levels by 2020 using a similar cap - and - trade market — and would expand such regulations to encompass not just CO2 from power plants but also cars and trucks as well as other greenhouse gases, such as potent methane.

This stability in methane levels had led scientists to believe that emissions of the gas from natural sources like livestock and wetlands, as well as from human activities like coal and gas production, were balanced by the rate of destruction of methane in the atmosphere.

They say a rise in methane in the northern hemisphere might be the result of a year - long warm spell in Siberia, where wetlands harbour methane - producing bacteria, but they have no immediate answer as to why emissions rose in the southern hemisphere at the same time.

The United States has released an ambitious, climate - and conservation - focused agenda for its 2 - year chairmanship that includes pushing for more research on black carbon, which accelerates melting in the region, and on emissions of the potent greenhouse gas methane from the seabed and permafrost, as well as creating a network of marine protected areas in the Arctic and equipping Arctic villages with renewable energy sources.

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.

A 16 - year study was used for robust estimates of the yield potential on organically managed crop land in southern Wisconsin as well as nitrous oxide and methane emissions and soil carbon.

«Every tonne of greenhouse gas that we emit leads to additional emissions from natural sources such as methane bubbles,» says Kosten.

In the new paper, published in the journal Environmental Research Letters, Höglund - Isaksson estimated global methane emissions from oil and gas systems in over 100 countries over a 32 - year period, using a variety of country - specific data ranging from reported volumes of associated gas to satellite imagery that can show flaring, as well as atmospheric measurements of ethane, a gas which is released along with methane and easier to link more directly to oil and gas activities.

The researchers were also not able to calculate a genuine long - term «climate benefit» from the early restriction of emissions such as methane or fluorocarbons.

Reducing emissions of soot from vehicles and methane from pipelines may not help reduce rates of global warming as much as earlier studies have suggested, new research suggests.

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.

The study also focuses attention on Texas and nearby states as a source of nearly a quarter of the country's human - related methane emissions.

«Our data suggest that even if increasing amounts of methane are released from degrading hydrates as climate change proceeds, catastrophic emission to the atmosphere is not an inherent outcome.»

At present, nations report methane emissions in terms of CO2 equivalents, using GWP100 as the conversion factor.

New research from the University of Georgia identifies an unexpected process that acts as a key gatekeeper regulating methane emissions from these freshwater environments.

When ruminants digest their feed, methane is formed as a natural by - product of the microbial process in the rumen, and since methane is a 25 times more powerful greenhouse gas than carbon dioxide, there is a need to devise methods to reduce such emissions from cattle.

The analysis found that at its peak, the blowout doubled the rate of methane emissions from the entire Los Angeles basin and temporarily created the largest known human - caused point source of methane in the United States, twice as large as the next - largest source, an Alabama coal mine.

Urban areas and their aging natural gas pipes and valves are also responsible for a lot of methane emissions, which is about 35 times as potent as a greenhouse gas over the span of 100 years and makes up about 10 percent of all U.S. greenhouse gas emissions in terms of CO2 equivalents.

Methane is a greenhouse gas up to 35 times as potent as carbon dioxide as a driver of climate change over the span of a century, and landfills are the United States» third largest source of methane emissions, according to tMethane is a greenhouse gas up to 35 times as potent as carbon dioxide as a driver of climate change over the span of a century, and landfills are the United States» third largest source of methane emissions, according to tmethane emissions, according to the EPA.

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.

In August, the EPA issued rules to limit air pollution by volatile organic compounds from «fracking» which should, as a by - product, also reduce emissions of methane.

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.

Or it could be that methane variations are mostly produced by wetland emission, driven by climate change as well as land use decisions, according to another set of papers.

What this means for the future is difficult to predict: rainfall is projected to increase, as is temperature, both of which lead to more methane emissions, but some models predict a drying out of soils which would reduce said emissions... I guess we'll find out.

The study found that natural gas end use sources — like gas meters, furnaces, boilers and hot water heaters — as well as landfills, are responsible for a large portion of urban methane emissions.

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?

Periods of volcanism can cool the climate (as with the 1991 Pinatubo eruption), methane emissions from increased biological activity can warm the climate, and slight changes in solar output and orbital variations can all have climate effects which are much shorter in duration than the ice age cycles, ranging from less than a decade to a thousand years in duration (the Younger Dryas).

The best way to estimate the magnitude of fossil methane emissions is by using measurements of methane isotopes, such as carbon.

If the world were to cut 45 percent of methane emissions by 2025, as studies suggest, it would have the same short - term climate benefit as closing one - third of the world's coal plants.

Previous studies suggest that natural geologic methane emissions of the past are at least as high as natural emissions today, so studying the ancient ice cores allows researchers to accurately determine the upper limit of geologic emissions, separate from their anthropogenic counterparts.

That meant, for example, traveling the globe to the various natural emissions sources — such as wetlands and land seeps — and conducting measurements and calculations of the methane emitted.