The higher methane levels are not a local safety or a health issue for residents; it's only factor in global warming.
Higher methane levels will accelerate warming further and faster.
«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.
Not exact matches
The study, which collected samples from 66 water wells, found naturally occurring
methane levels in 15 percent of the wells were
high enough to require mitigation.
Methane levels are roughly two and a half times preindustrial
levels, and nitrous oxide
levels are around 20 percent
higher.
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.
On four occasions I measured spikes of
methane that were about 10 times
higher than background
levels.
A US study from 2011 showed
high levels of
methane in water wells close to shale gas wells, but has been criticised for lacking data on
levels of background natural
methane in the water.
The ice core data also shows that CO2 and
methane levels have been remarkably stable in Antarctica — varying between 300 ppm and 180 ppm — over that entire period and that shifts in
levels of these gases took at least 800 years, compared to the roughly 100 years in which humans have increased atmospheric CO2
levels to their present
high.
If it all thaws out, we may see the
highest levels of atmospheric
methane in 10,000 years.
Turning up the heat seems to increase the rate at which the plants produce
methane, Keppler says, which could explain why atmospheric
levels of
methane were
high hundreds of thousands of years ago when global temperatures were balmy.
There, wells closer to fracking sites had
higher levels of
methane.
Tests conducted soon after by the Pennsylvania Department of Environmental Protection revealed that the Sautners» water contained
high levels of
methane, the main component of natural gas.
Beerling's models suggest that
high carbon dioxide and
methane levels contributed to this (Proceedings of the National Academy of Sciences, DOI: 10.1073 / pnas.1102409108).
That is because some organisms can consume the
methane as it travels up the water column and because some of the gas naturally dissolves to raise surrounding low -
methane seawater to
higher, standard
levels.
This is because warmer temperatures and other changes in the atmosphere related to a changing climate, including
higher atmospheric
levels of
methane, spur chemical reactions that lead to ozone.
In less than a handful of cases, the natural
methane levels were relatively
high, above 10 milligrams per liter.
By that time, the
methane plume had begun to disperse into a larger volume of water, but Joye's team continued to find
methane concentrations up to 1,000 times
higher than prespill
levels in some places.
High levels of
methane on Mars would have been a compelling indication of life there.
If coal mining emitted anywhere near that
level it would dwarf all other sources of
methane and atmospheric
levels would be much
higher (easily 5 ppm, maybe
higher).
E.g. 550 million years ago CO2 was a whopping 18 times
higher than today, and it was significantly warmer, meaning that
methane levels must also have been much
higher too.
High levels of
methane leakage from fracking have been found [163], as well as nitrogen oxides and volatile organic compounds [159].
In that core, however, some segments within about 100 meters, or 300 feet, of the bottom registered
levels of
methane as much as 10 times
higher than would be expected from trends over the past 110,000 years.
Ice core records prove that current
levels of carbon dioxide and
methane, both important greenhouse gases, are
higher than any previous
level in the past 400,000 years.
In one study researchers found
methane levels 17 times
higher in drinking water near fracking sites compared to those in non-drilling sites.
Some studies have found that patients who demonstrate a
higher amount of
methane are more likely to experience constipation, while diarrhea - predominant patients demonstrate a
higher level of hydrogen.
If coal mining emitted anywhere near that
level it would dwarf all other sources of
methane and atmospheric
levels would be much
higher (easily 5 ppm, maybe
higher).
E.g. 550 million years ago CO2 was a whopping 18 times
higher than today, and it was significantly warmer, meaning that
methane levels must also have been much
higher too.
Methane is roughly 28 times more efficient at trapping heat in the Earth's atmosphere over a 100 - year time frame, and current levels of methane in the atmosphere are higher than at any point in the past 2,000
Methane is roughly 28 times more efficient at trapping heat in the Earth's atmosphere over a 100 - year time frame, and current
levels of
methane in the atmosphere are higher than at any point in the past 2,000
methane in the atmosphere are
higher than at any point in the past 2,000 years.
Researchers from Duke University say they have found a clear link between gas drilling in Pennsylvania and Upstate New York and
high levels of flammable
methane in drinking water — a situation that became a prominent talking point in the drilling debate after flaming faucets were featured in the documentary «Gasland.»
Carbon dioxide
levels,
methane levels, are already very
high relative to what we know existed for the last million years.
What I think you mean is that if we get CO2
levels high enough to cause a serious problem, we can't just stop emitting and hope the concentration will drop in time to make a difference, whereas with
methane, it decays fast enough that we need to worry more about the decay products than about
methane itself.
Look at the concentration numbers there at a known ground
level source, then look again at that
methane emergency blog and the concentrations reported for up
high in the polar atmosphere.
This is about as far as one could get from
high levels (relative to most atmospheric concentrations) of
methane over large areas
high in the atmosphere in the Arctic where there is very little (direct) human activity.
They found the
highest levels of
methane in areas with refineries.
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 - /
Sources: -
Methane Burps: Ticking Time / billion tonnes of it into the atmosphere every day... Deforestation destroys livelihoods: over 1.5 billion / Prevent
high blood pressure Lower cholesterol
levels Reduce Type 2 diabetes Prevent stroke conditions Reverse atherosclerosis Reduce heart disease risk - 50 /
The cores show that modern
levels of carbon dioxide,
methane, and nitrous oxide
levels are the
highest they have ever been.
But with the build - up to war economic output reflective aerosols would have been at a
higher level — with greenhouse gases having gone stagnant for a good part of the previous decade and with
methane having been hit even harder due to its short residence time.
Ice core records prove that current
levels of carbon dioxide and
methane, both important greenhouse gases, are
higher than any previous
level in the past 400,000 years.
Humans have never existed during a time when CO2 or
Methane levels in the atmosphere have been this
HIGH..
The threat from surging
levels of
methane is too
high to ignore as it is a highly potent gas compared to Carbon dioxide.
And there they found
high readings of
methane at the hole's base — in the range of 10 % concentration, which is a very explosive
level for the gas.
These «
methane chimneys» sometimes contained concentrations of the gas 100 times
higher than background
levels and were so large that clouds of gas bubbles were detected «rising up through the water column,» Orjan Gustafsson of the Department of Applied Environmental Science at Stockholm University and the co-leader of the expedition, said in an interview.
The following is a quote from the Arctic
Methane Emergency Group («AMEG»), which is the organization created by these
high level climate scientists.
The first sensor is used to identify the low
levels of
methane gas emissions and the second one is meant to read
high levels of emission.
We found that for some scenarios, the
methane levels can stay
high enough and remain long enough to play the dominant role in the subsequent climate warming.
Methane and co2
levels have been many times
higher in the past and even if the entirety of the Worlds know fossil fuel reserves where released into the atmosphere we still would not get back to those
levels.
High levels of
methane leakage from fracking have been found [163], as well as nitrogen oxides and volatile organic compounds [159].
Their was a study done by NOAA on the air quality in Erie Colorado, close to my home where their is lots of wells, and it stated that they found
levels of
Methane, butane and some other carcinogenic chemicals in the air were
higher then
levels in big cities like Houston Texas and Pasadena California.