Because methane, which makes up about 95 percent of the natural gas in pipelines, is about 25 times more
potent as a greenhouse gas than carbon dioxide, the leakage raises a troubling climate question: How clean is natural gas?
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 72 times more
potent as a greenhouse gas than carbon dioxide in the 20 years after it is emitted, according to CARB.
Methane is 30 times more
potent as a greenhouse gas than carbon dioxide, while nitrous oxide is almost 300 times as potent.
The coal mining process releases methane, which is 87 more
potent as a greenhouse gas than CO2 over a 20 year period (4).
Not exact matches
Methane is the second-most prevalent
greenhouse gas according to the EPA, and is believed to be 20 times more
potent as a heat - trapping
greenhouse gas than carbon dioxide.
Walter sees the benefits of using methane
as an energy source
as twofold: «Not only does it prevent a
potent greenhouse gas from entering the atmosphere by converting it to weaker
greenhouse gases — water vapor and carbon dioxide — but using it on - site would also reduce the demand for other fossil - fuel sources.»
In a paper released for discussion in the journal Atmospheric Chemistry and Physics, Crutzen calculated that 3 to 5 percent of the nitrogen in the fertilizers used to raise crops for biofuels could end up in the atmosphere
as nitrous oxide, a
potent, long - lived
greenhouse gas.
And it remains to be seen whether natural
gas delivers environmental benefits — such
as reduced emissions of carbon dioxide when burned — given that it in itself is a
potent greenhouse gas if it escapes during drilling or pipeline operations, so - called fugitive emissions.
Instead, they provide the ideal conditions for the growth of yet other bacteria that in turn produce more
potent greenhouse gases, such
as nitrous oxide and methane.
That makes them either a
potent energy source, or if they melt
as the permafrost melts, a
potent source of methane, which will act
as a
greenhouse gas.
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.
Since methane is a
greenhouse gas 25 times
as potent as carbon dioxide, such a scenario would trigger a «climate catastrophe», they say, increasing the methane content of the planet's atmosphere twelve-fold, and raising temperatures by 1.3 ˚C.
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.
As U.S. EPA announces new commitments to cut
potent greenhouse gases, the Department of Energy is highlighting all the ways emitters can meet those goals.
Yet, chlorofluorocarbons, to give them their proper name, are
potent molecules that both exacerbate the blanket of
greenhouse gases warming the world
as well
as chew up the stratospheric ozone layer protecting the planet's inhabitants from excess doses of ultraviolet sunlight.
Those chemicals also act
as potent greenhouse gases, so the agreement also makes him the negotiator of one of the most effective global climate treaties ever, despite being part of an administration that famously removed solar technology from the White House roof.
Twenty years after such a release, methane is 72 times more
potent than carbon dioxide (CO2)
as a
greenhouse gas (after 100 years it remains 25 times more
potent than CO2), so if the methane is released, the planet risks a runaway climate catastrophe.
HFC - 23, an industrial
greenhouse gas thousands of times more
potent than carbon dioxide, is produced
as a by - product in the manufacture of refrigerant, and a number of major offset projects capture and destroy HFC - 23, doing a huge service to the climate.
Northern Siberia:
As lakes in the permafrost zone of northern Siberia thaw, they are releasing methane — a
potent greenhouse gas.
As debate roils over EPA regulations proposed this month limiting the release of the
potent greenhouse gas methane during fracking operations, a new University of Vermont study funded by the National Science Foundation shows that abandoned oil and
gas wells near fracking sites can be conduits for methane escape not currently being measured.
Beaver ponds can indeed be large sources of
potent planet - warming
greenhouse gases such
as methane and nitrous oxide, says Jennifer Edmonds, an aquatic ecologist at the University of Alabama, Tuscaloosa.
Rice serves
as the staple food for more than half of the world's population, but it's also the one of the largest humanmade sources of atmospheric methane, a
potent greenhouse gas.
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 the EPA.
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.
But while cows seem to let off
as much of the
potent greenhouse gas as they produce, swamps hold on to most of it.
Potent greenhouse gases, such
as nitrogen oxides produced by denitrifying bacteria in overfertilized Chinese farming lands or methane released by archaea in the millions of ruminant animals in Australia and New Zealand, may have contributed substantially to global warming.
Most strikingly, the warmest soil sample in Jansson's study — the spongy bog soil — revealed an array of microbial genes and proteins involved in the production of methane, a
greenhouse gas more than 20 times
as potent as carbon dioxide.
How significant are these emissions to the climate, considering methane's
potent impact
as a
greenhouse gas?
It also had the unfortunate side effect of creating a rise in hydrofluorocarbons — a
potent greenhouse gas —
as alternative coolants.
Methane is a
greenhouse gas 300 times
as potent as CO2, so it would be capable of warming the planet, even with the weaker sun.
But it's a very, very
potent greenhouse gas and I think that's an existential threat to the
gas industry
as we're starting to realise.
Some scientists, including Cornell University environmental biologist Robert Howarth, have questioned natural
gas's use
as a «bridge fuel» because producing the
gas, most of which is released from underground shale formations through hydraulic fracturing, often emits a lot of methane, a
potent greenhouse gas.
Worse, thawed permafrost can release its carbon
as methane, which is more than 20 times
as potent a
greenhouse gas as carbon dioxide.
It has a big impact on the environment
as it rots and releases methane — a harmful
greenhouse gas that is 25 times more
potent than carbon dioxide.
The ocean surface warmed a bit, too, releasing carbon dioxide to the atmosphere and strengthening the warming trend further, and
as frozen ground thawed, the
potent greenhouse gas methane would have been released
as well, increasing the «longwave forcing».
As it decomposes under piles of waste with no access to sunlight or oxygen, it decomposes anaerobically — a process that inevitably generates methane, a greenhouse gas that according to Science Daily, «is roughly 30 times as potent as a heat - trapping gas [compared to carbon dioxide].&raqu
As it decomposes under piles of waste with no access to sunlight or oxygen, it decomposes anaerobically — a process that inevitably generates methane, a
greenhouse gas that according to Science Daily, «is roughly 30 times
as potent as a heat - trapping gas [compared to carbon dioxide].&raqu
as potent as a heat - trapping gas [compared to carbon dioxide].&raqu
as a heat - trapping
gas [compared to carbon dioxide].»
The power produced is triple carbon negative because methane is 23 times more
potent than CO2
as a
greenhouse gas and this project destroys it.
• Leverages new opportunities to reduce pollution of highly -
potent greenhouse gases known
as hydrofluorocarbons; directs agencies to develop a comprehensive methane strategy; and commits to protect our forests and critical landscapes.
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.
Other feedbacks include forests, and most importantly, water vapour, which
as the temperature of the atmosphere rises increases in the atmosphere (think tropical rain forest), and water vapour is a
potent greenhouse gas (but it is not the «controller» of our climate because it does not accumulate in the atmosphere, only
gases like CO2, methane and nitrous oxide do this) See Skeptical Science https://skepticalscience.com/co2-lags-temperature.htm
A few days ago the «shocking» headlines came out, describing some new research on how much methane is now seeping out of the Arctic seafloor — a
greenhouse gas far more
potent than carbon dioxide, but much shorter lived in the atmosphere —
as the region warms and permafrost melts.
The rotting litter produces methane
gas which is twenty times more
potent a
greenhouse gas as is CO2.
The problem,
as is noted in Howarth's paper, is the huge amount of guesswork behind estimates of
gas emissions from this (or any other) form of natural
gas drilling and the subjectivity of interpretations of the
greenhouse influence of such emissions (which are nearly all methane, a
potent but short - lived heat - trapping
gas).
In the atmosphere, a portion of the nitrogen winds up
as nitrous oxide — laughing
gas — which is not only a
greenhouse gas that is 300 times more
potent that carbon dioxide, but also destroys ozone, the
gas that keeps us from getting more of a dose of UV radiation.
I've previously given BP a lot of credit for environmental care,
as in my 2009 article and Dot Earth post on the company's remarkable efforts — far beyond those of nearly all competitors — to stanch the flow of methane, the main constituent of natural
gas and a
potent greenhouse gas, from its wells and pipes in New Mexico.
I'd summarize Lou's main point
as being that it's meaningless to sound off about how much more «
potent» a
greenhouse gas methane (natural
gas) may be, compared to CO2, unless you also take into account how small methane emissions are relative to CO2.
Natural
gas — methane — which anti-nuclear environmentalists lately seem to be embracing, is a
greenhouse gas more than 20 times
as potent as carbon dioxide.
Natural
gas is said to emit only half
as much CO2
as coal; but recent research suggests that natural
gas drilling produces far more methane than had previously been thought, and methane is an extremely
potent and dangerous
greenhouse gas.