Sentences with phrase «higher methane emissions»

«This, along with changes in livestock management, can lead to higher methane emissions.»

On the other hand, higher roughage diets can lead to higher methane emissions from ruminants (Shibata and Terada, 2010).

Although recent models predict that a small net accumulation of carbon will occur in Arctic tundra during the present century (low confidence), higher methane emissions responding to the thawing of permafrost and an overall increase in wetlands will enhance radiative forcing (medium confidence).

This, along with changes in livestock management, can lead to higher methane emissions,» says Julie Wolff of the US Department of Agriculture, the senior author.

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

The analysis revealed noticeably higher methane emissions from streams and rivers in watersheds marked with heavy agriculture, urban development or the presence of dams.

This, along with changes in livestock management, can lead to higher methane emissions.

But beef and lamb come with a high eco-footprint (especially when the animals eat grass, resulting in higher methane emissions).

During the discovery of New Zealand's methane seeps, an unexpectedly dense habitat of heterotrophic infauna, dominated by ampharetid polychaetes, was found to co-occur with incredibly high methane emission.

I would like to see a discussion of the likelihood that factors traditionally viewed as slow response feedback factors (such as Arctic albedo, or high methane emissions permafrost degradation) may actually become faster response feedback factors.

However, they note that some oil and gas fields do not appear to have similarly high methane emissions, suggesting that such leaks could be stemmed by improved drilling techniques and well designs.

fernandoleanme June 11, 2015 at 3:40 am PA, RCP8.5 includes very high methane emissions.

PA, RCP8.5 includes very high methane emissions.

These shale gas pads were identified as in the drilling process, a preproduction stage not previously associated with high methane emissions.

Not exact matches

These include poisonous methane emissions from cows that accelerate climate change and higher health care costs associated with unhealthy diets, which are ultimately paid for by society.

In addition, eliminating synthetic pesticides and fertilizers in regenerative organic agricultural systems directly reduce GHG emissions that normally come from creating these synthetics and from higher methane and nitrous oxide emissions due to management.

They're dairy free (because methane emissions from cows is a serious problem) and use a mixture of Einka flour (which is high in protein and vitamins and grown and milled right here in the Methow Valley) and buckwheat flour for a hearty, rich flavor.

Over the course of the experiment, emissions of planet - warming methane from the dung of antibiotic - dosed cows were, on average, 80 % higher than those from the manure of untreated cattle, the team reports online today in the Proceedings of the Royal Society B.

Headed toward an 8 F rise in warming Other such low - probability but high - risk scenarios mentioned in the report include ecosystem collapses, destabilization of methane stored in the seafloor and rapid greenhouse gas emissions from thawing Arctic permafrost.

In a project sponsored by the U.S. National Aeronautics and Space Administration's (NASA) Carbon Monitoring System research initiative, researchers from the Joint Global Change Research Institute (JGCRI) found that global livestock methane (CH4) emissions for 2011 are 11 % higher than the estimates based on guidelines provided by the Intergovernmental Panel on Climate Change (IPCC) in 2006.

«The methane emissions from the gas wells... are surprisingly high considering that all of these wells were still being drilled, had not yet been hydraulically fractured, and were not yet in production,» the paper reports.

The researchers also observed regional differences in methane emission levels, with the lowest emissions per device measured in the Rocky Mountains and the highest emissions in the Gulf Coast, similar to the earlier 2013 study.

«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.

Methane is a key greenhouse gas; the Arctic is a key region for natural emissions of methane; high summer and autumn are key periods when emissions can peak and change rMethane is a key greenhouse gas; the Arctic is a key region for natural emissions of methane; high summer and autumn are key periods when emissions can peak and change rmethane; high summer and autumn are key periods when emissions can peak and change rapidly.

The biologists predict that a temperature rise of 1 degree Celsius leads to 6 - 20 percent higher emission of methane bubbles, which in turn leads to additional greenhouse gases in the atmosphere and to an additional temperature increase.

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.

That led to 50percent higher emission of methane bubbles.

Global methane and ethane emissions from oil production from 1980 to 2012 were far higher than previous estimates show, according to a new study which for the first time takes into account different production management systems and geological conditions around the world.

For the first time, the researchers also showed that higher HTC production temperatures resulted in a significant reduction in emissions of methane (CH4) and ammonia (NH3) and an increase of carbon dioxide and carbon monoxide.

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.»

Using ethane as a tracer for fugitive methane emissions, his team found two high - emitting sites in the central United States.

«Tiny grains of rice hold big promise for greenhouse gas reductions, bioenergy: Discovery delivers high starch content, virtually no methane emissions.»

A new report based on recent scientific breakthroughs in methane quantification finds that emissions of methane — both a potent greenhouse gas and valuable fuel source — are drastically higher than official state reports.

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.

If the natural geologic methane emissions are lower than previously thought, the anthropogenic fossil methane emissions must be higher than previously thought — Petrenko estimates by 25 percent or more.

We find (i) measurements at all scales show that official inventories consistently underestimate actual CH4 [methane] emissions, with the natural gas and oil sectors as important contributors; (ii) many independent experiments suggest that a small number of «super-emitters» could be responsible for a large fraction of leakage; (iii) recent regional atmospheric studies with very high emissions rates are unlikely to be representative of typical natural gas system leakage rates; and (iv) assessments using 100 - year impact indicators show system - wide leakage is unlikely to be large enough to negate climate benefits of coal - to - natural gas substitution.

Certainly high methane concentrations indicate emission fluxes, but it's not straightforward to know how significant that flux is in the global budget.

If methane is emitted by plants in prodigeous quantities, is reduced growth, in, for example, the Amazon forest due to higher temperatures and drought, a candidate for explaining the drop in methane emissions from the early 1990s?

If we want to understand methane (and greenhouse gas) emissions with high certainty sufficient for regulation, we would need an expanded network of observations.

Depending on Denmark for CO2 reductions To make matters worse, this fall high methane - gas emissions were discovered emanating from wetlands in Northeast Greenland by surprised Swedish researchers.

Hamburg: Our study reinforces the fact that specific source types for methane are higher than current E.P.A. and EDGAR inventories suggest, and they do indeed need more attention because emissions in some regions of the US appear to be substantially higher than previously estimated.

Howarth: Our study bolsters recent smaller - scale studies that hinted that methane emissions associated with energy production may be higher than previously estimated.

Methane emissions are lower than estimated by EPA for well completions and higher for valves and equipment used to control routine operations at the well site.

David Archer of the University of Chicago has again done yeoman's service by posting a detailed look at this paper on Realclimate (along with last Monday's methane paper, discussed here, providing a new and higher estimate of emissions of this gas across the United States).

Related Michael Levi of the Council on Foreign Relations has a paper in press in the Journal of Geophysical Research challenging a widely covered «bombshell» study in that journal estimating very high rates of emissions of methane from Colorado gas and oil wells.

«And we found that the estimates of methane emissions per area of reservoir are about 25 percent higher than previously thought, which we think is significant given the global boom in dam construction, which is currently underway.»

A new NASA - sponsored study shows that global methane emissions produced by livestock are 11 percent higher than estimates made last decade.

Organic waste is the second highest component of landfills, the largest source of methane emissions.

Sources: - Methane Burps: / Chicago - Diet for a New America, John Robbins, 1987 - World Food Programme - Photo: Finbarr O'Reilly, Canada, Reuters, Mother / Mellon University researchers found that eating vegan food one day per week, saves more emissions than eating locally - / Prevent high blood pressure Lower cholesterol levels Reduce Type 2 diabetes Prevent stroke conditions Reverse atherosclerosis Reduce heart disease risk - /

«In addition, we are currently developing a method that also allows for high - precision hydrogen isotopic measurements on methane in ice cores, which will further improve our emission flux constraints,» revealed Fischer.