Sentences with phrase «high methane»

And the structures that remain apparently release methane gas for some time — as is evidenced by continued high methane concentrations found at crater sites and by observed emissions from crater lake surfaces.

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

Higher methane levels will accelerate warming further and faster.

The main reason is the relatively high methane leakage from gas extraction.

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).

We identified a significant regional flux of methane over a large area of shale gas wells in southwestern Pennsylvania in the Marcellus formation and further identified several pads with high methane emissions.

«We show that methane mixing ratios greater than 10 - 3 are potentially biogenic, whereas those exceeding 10 - 2 are likely biogenic due to the difficulty in maintaining large abiotic methane fluxes to support high methane levels in anoxic atmospheres,» the researchers wrote in their study.

A nearby circuit showed higher methane upwind of a pad than downwind, indicating a source outside the target area, possibly from nearby mine vents.

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

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

Following a recent study that showed high methane output from oil and gas development, the EPA has proposed new regulations to reduce methane emissions from the industry by 2025.

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.

So far our data do not show any evidence for rapid water contamination, as we do not see evidence of these diluted brines (type D water) associated with distance to natural gas wells (the Osborn 2011 paper) in wells where higher methane concentrations were observed.

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.

The second highest methane emissions are attained in the B2 marker, which also has a «regional» orientation, but with a more environmentally sustainable emphasis as compared to the A2 marker.

We found that runnel ponds had significantly higher methane and carbon dioxide emissions, produced from a slightly larger fraction of old carbon, compared to polygonal ponds.

Note the change of the color scale: To consider the approx. 30 ppb higher methane concentrations during 2010 - 2011 compared to 2003 - 2004, the color scale has been shifted by 30 ppb for GOSAT compared to SCIAMACHY (click here for GERMAN version):

On the basis of high methane content per tonne of coal, Bhatdee is considered a Degree 3 mine under Bharat Choking Coal.

Much of the news coverage and commentary was greatly oversimplified, implying that airplane measurements taken on two days in 2012 and showing high methane levels over a handful of wells (and nothing unusual over almost all the other wells in the region) pointed to an extraordinary new pollution and climate change risk.

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

«The fact that human activity in a watershed leads to high methane concentrations in those rivers and streams underscores yet another reason to pay attention to water quality.

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.

«[Professional hydrogeologist John] Conrad also criticized the study for not starting with «baseline tests for the wells they sampled»... «While they point to higher methane concentrations, we don't know what the original water quality was before drilling occurred,» he said.

High methane concentrations (reds and yellows) appear during martian summer in localized plumes.

«Not only are fens one of the strongest sources of wetland greenhouse gases, but we also know that Canadian forests and tundra underlain by permafrost are thawing and creating these kinds of high methane - producing ecosystems.»

The closer the wells were to the drill sites, the higher the methane concentrations, some of which were above the level that raises alarm at the Department of the Interior.

Not all studies support the higher methane numbers.

«The fact that human activity in a watershed leads to high methane concentrations in those rivers and streams underscores yet another reason to pay attention to water quality,» says Stanley.

I don't know if I had high methane or hydrogen (or both).

blogspot: December 10, 2013 Noctilucent clouds: further confirmation of large methane releases Back in September 2013, extremely high methane readings were recorded over the heights of Antarctica... These high methane readings over Antarctica have not been discussed much among climate scientists, let alone in the media.

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.

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).

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

«Not only are fens one of the strongest sources of wetland greenhouse gases, but we also know that Canadian forests and tundra underlain by permafrost are thawing and creating these kinds of high methane - producing ecosystems.»

The higher methane levels are not a local safety or a health issue for residents; it's only factor in global warming.

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

In the Yale forest, red maples were found to have the highest methane concentrations while oak, birch, hemlock and pine had lower levels.