We certainly do not need any feedbacks that bring additional natural sources
of powerful greenhouse gases to the table, yet that is exactly what we risk up in the Siberian Arctic.
The Environmental Investigation Agency (EIA) filed a petition yesterday calling on the U.S. Environmental Protection Agency (EPA) to end the use
of powerful greenhouse gases called hydrofluorocarbons (HFCs) in a number of applications, building on the significant progress made in two recent rulemakings under the Significant New Alternatives Policy (SNAP) Program.
The Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer struck a landmark deal in October 2016 in Kigali to reduce the emissions
of powerful greenhouse gases, hydrofluorocarbons (HFCs).
Through the installation of gas collection and control systems, these projects result in the destruction
of powerful greenhouse gases, and the gas can be burned in a generator to create renewable electricity.
SciDev.Net: Efforts to rid the world of hydrofluorocarbons (HFCs), a group
of powerful greenhouse gases mainly used as refrigerants, may depend on developing nations being able to leapfrog these chemicals to less harmful alternatives, an environmental group has warned.
The Aliso Canyon natural gas well blowout, first reported on Oct. 23, 2015, released over 100,000 tons
of the powerful greenhouse gas methane before the well was sealed on Feb. 11, according to the first study of the accident published today in the journal Science.
Their findings, published March 9 in Proceedings of the National Academy of Sciences, show that groundwater from the seasonal thawing of the «active layer» of soil above the permafrost adds significantly to the overall concentration of methane in the lake and thus influences the emission
of this powerful greenhouse gas to the atmosphere.
A section of the Arctic Ocean seafloor that holds vast stores of frozen methane is showing signs of instability and widespread venting
of the powerful greenhouse gas, according to the findings of an international research team led by University of Alaska Fairbanks scientists Natalia Shakhova and Igor Semiletov.
A key source
of a powerful greenhouse gas, methane emissions from permafrost, is producing much more than realised, scientists report.
31 March, 2018 — A key source
of a powerful greenhouse gas, methane emissions from permafrost, is producing much more than realised, scientists report.
Not exact matches
They'll also vote on a proposal requiring it to report on its efforts to restrict emissions
of methane, a
powerful greenhouse gas.
Some
of the nitrogen the crops do not absorb is converted into nitrous oxide, a
greenhouse gas 310 times more
powerful than carbon dioxide.
As you see, food waste is the largest waste stream going to landfills in the US, accounting for 21 percent
of the American waste stream and contributing to climate change as food waste in landfills decomposes and generates methane, a very
powerful greenhouse gas.
«As
powerful as the cycle is, it is also surprisingly susceptible to environmental changes — and humankind is imposing massive perturbations on Amazonia by both cutting down the trees and heating up the air with
greenhouse gases, which reduces large - scale moisture transport and precipitation, and end up affecting even the untouched patches
of the forests.»
By contrast, nitrous oxide, a by - product
of food production, is both a
powerful greenhouse gas and an ozone depleting
gas, and is likely to become more important in future ozone depletion.
If these rates continue, emissions
of methane, a
greenhouse gas 25 times more
powerful than carbon dioxide on 100 - year time scales, will increase 4 percent over the next decade.
The new study includes other strategies beyond current policies to help reach the 2025 goal: staunching methane leaks (121 million tons), reducing the use
of refrigeration chemicals that are
powerful greenhouse gases (67 million tons), and increasing efficiency standards for appliances and buildings (29 million tons each).
Methane, which can leak from pipelines and valves, is a
powerful greenhouse gas, with up to 80 times the potential
of carbon dioxide to trap the planet's heat.
The other two
gases have significantly less impact: isoflurane is only a third as
powerful a
greenhouse gas as is desflurane and sevoflurance has only an eighth
of desflurane's effect.
Most
of it ends up in landfills where it biodegrades over time, producing biogas, a
powerful greenhouse gas largely composed
of carbon dioxide, methane and hydrogen sulfide.
Manure accounts for around 14 per cent
of New Zealand's emissions
of nitrous oxide, a
powerful greenhouse gas.
The controversy centres around the inclusion
of refrigerant - producing factories that generate the
powerful greenhouse gas HFC 23 as a by - product.
It produces less carbon dioxide emissions than coal for electricity or gasoline and diesel for fuel, but even a small amount
of natural
gas release — which is essentially methane — packs a
greenhouse gas punch about 30 times more
powerful than the same amount
of carbon dioxide.
In a separate study, Katey Walter, an aquatic ecologist at the University
of Alaska at Fairbanks, showed that much
of this buried carbon may emerge as methane, a
greenhouse gas some 20 times more
powerful than carbon dioxide.
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.
Hogs and cattle get a bad rap because they — and their manure — emit a lot
of methane, a
powerful greenhouse gas.
The plant, equipped with DNA from barley, emits as little as 1 %
of the methane — a
powerful greenhouse gas —
of a conventional variety, while also producing more rice.
Such data, combined with ground monitoring and inventories
of fossil - fuel consumption, could be a
powerful tool for pinpointing
greenhouse -
gas sources, says Kevin Gurney, a carbon biogeochemist at Arizona State University in Tempe.
And many, such as methane, are far more
powerful greenhouse gases in terms
of infrared absorption per molecule.
RICHLAND, Wash. — As the Arctic warms, tons
of carbon locked away in Arctic tundra will be transformed into the
powerful greenhouse gases carbon dioxide and methane, but scientists know little about how that transition takes place.
In particular, nitrogen fertilizers enhance the emission
of nitrous oxide — a
powerful greenhouse gas in Earth's atmosphere.
It also can trigger the release
of dangerous chemicals such as nitrous oxide, a
greenhouse gas up to 300 times more
powerful than carbon dioxide, and toxic hydrogen sulfide.
Others argue that global warming brought on by the increased production
of greenhouse gasses will lead to larger hurricane zones and more
powerful storms.
The Montreal Protocol had no impact on cleaning the air, it stopped the growth
of CFCs which are
powerful greenhouse gases (in addition to their role in depleting stratospheric ozone), therefore it slowed global warming, rather than increasing it, and we aren't trying to save ground - level ozone.
Hydrogen in particular is a
powerful greenhouse gas that may prevent the habitability
of inner planets while enabling the habitability
of outer ones6, 7,8.
The AGU has made a
powerful case that increasing concentrations
of greenhouse gases in the atmosphere significantly contributes to the warming
of the global climate.
«If California allows credits for reductions in deforestation, it would send farmers and forest communities a
powerful signal that living forests can be worth more than dead ones, and contribute to keeping these
greenhouse gases out
of the atmosphere,» said EDF's Schwartzman.
It was hypothesized that if CO2 warmed the atmosphere, the amount
of water vapor — itself a
powerful greenhouse gas — in the atmosphere should increase.
A new report ranks centralized composting as a top strategy for keeping food waste out
of landfills, where it emits methane, a
powerful greenhouse gas.
Methane, the primary component
of natural
gas, is a
powerful greenhouse gas — 72 times more potent than carbon dioxide over a 20 - year time frame.
It's been nice in recent days to see some strong advocates for curbs in emissions
of greenhouse gases shift from the more overheated, and unsupported, rhetoric they used earlier this year in attempting a kind
of «kitchen sink» argument aiming to tie virtually every recent harmful weather event to warming, even those — like
powerful tornadoes — for which there is no link and certainly no trend.
In the meantime, the latest news will serve, I'm sure, to heat up the climate fight, providing
powerful imagery for climate campaigners and more ammunition for foes
of greenhouse gas restrictions who argue that such imagery belies the marine mammals» resiliency in both watery and frozen seas.
In summary, they wrote: «Together, the illusion
of greenhouse -
gas reductions and the creation
of powerful lobbies seeking to protect newly created profits in permits and offsets would lock in climate degradation for a decade or more.»
There are over 1,500 landfill sites in the UK, and in 2001, these sites produced a quarter
of the UK's emissions
of methane, a
powerful greenhouse gas.
The world's most
powerful established and emerging nations — together responsible for more than 80 percent
of global
greenhouse gas emissions — concluded a day - long meeting after the Group
of 8 summit in Japan and emerged on Wednesday with a joint statement calling climate change «one
of the great global challenges
of our time.»
The second argument is that it is claimed that computer models are now
powerful and accurate enough to replicate temperature given the inputs
of greenhouse gas forcing and natural forcing (this is what Nordhaus shows in footnote 4) a graph with both is much more accurate than with just natural forcing.
The release
of this trapped methane is a potential major outcome
of a rise in temperature; it is thought that this is a main factor in the global warming
of 6 °C that happened during the end - Permian extinction as methane is much more
powerful as a
greenhouse gas than carbon dioxide (despite its atmospheric lifetime
of around 12 years, it has a global warming potential
of 72 over 20 years and 25 over 100 years).
Over the weekend I watched a near - final version
of the program, and I found it a
powerful, fair and — given the time constraints — comprehensive report on the benefits and risks
of one
of the handful
of energy technologies that can provide electric power in bulk without
greenhouse gases.
If nothing else, the White House coordinated today's Rose Garden announcement to start balancing North American
greenhouse gas emissions with adequate energy supplies at the center
of Canada's
powerful energy industry.
Energy efficiency is the most
powerful way to cut down
greenhouse gas emissions: it could make up to two - thirds
of cuts according to the IEA.