Sentences with phrase «other global methane»

In this second instalment we will look at the potential of the rest of the Arctic to produce subcap methane, and will compare the size of these seeps to other global methane - producing mechanisms.

Not exact matches

But methane gas, which is produced by, among other things, rotting garbage in the nation's landfills, is 22 times more potent a contributor to global warming.

But the livestock sector is responsible for about 14.5 percent of global greenhouse gas emissions, through cows producing methane and production processes - comparable to all the direct emissions from cars, planes, ships and other transport.

... A number of scientific studies indicate that most global warming in recent decades is due to the great concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxides and others) released mainly as a result of human activity... Doomsday predictions can no longer be met with irony or disdain.

Ryskin proposes that huge deposits of methane and other gases, which are naturally produced in deep - sea waters, became trapped under the pressure of a then - stagnant global ocean.

Such model included meteorological factors like levels of aerosols, anthropogenic and biogenic volatile organic compounds (VOCs), ozone, carbon dioxide, methane, and other items that influence global temperature — the surface albedo among them.

So if the mine is in the middle of nowhere and there are not other sources of pollution, then the methane released simply becomes part of the global background.

The team also looked at other contributors to ground - level ozone, such as global methane from livestock and wildfires.

With methane released at that rate, the drawbacks of its use may outweigh its global warming benefits compared with other transportation fuels, such as gasoline or diesel.

«It is true that there are other factors (such as volcanism, the changes in the orbit and the axis of the Earth, the solar cycle), but numerous scientific studies indicate that most of the global warming in recent decades is due to the large concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxide and others) mainly emitted due to human activity.»

he unsung heroes of the global carbon cycle are methanogens — microbes at the bottom of the food chain who break down the waste products of other organisms and release methane gas into the atmosphere.

1985 Ramanathan and his collaborators announce that global warming may come twice as fast as expected, from a rise of methane and other trace greenhouse gases.

This is your hardest question to answer, as the question seems to presuppose their are other sources of heat that are warming up the earth other than global warming due to CO2, methane, nitrous oxide (from agriculture and fertilisers) and CFCs (chlorofluorocarbons, from refrigerants etc) accumulating in the atmosphere from mankind's various activities.

Turning methane and other global warming into useful products can be energy intensive, but Newlight Technologies thinks they've found a way to turn hot air into hot chairs.

It is no surprise to us that others monitoring global methane have not found a signal from the Siberian Arctic or increase in global emissions.

There are enough health - damaging pollutants in the air today such that, if they (tropospheric ozone, its principal precursor methane, black soot, and some other trace gases that contribute to the global warming) were reduced by feasible amounts, the planet's energy balance could be restored, or nearly so.

It is true that there are other factors (such as volcanism, the changes in the orbit and the axis of the Earth, the solar cycle), but numerous scientific studies indicate that most of the global warming in recent decades it is due to the large concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxide and others) mainly emitted due to human activity.

The Nature commentary by Penner et al. on which this argument is based actually says that on top of the global warming caused by carbon dioxide, other short - lived pollutants (such as methane and black carbon) cause an additional warming approximately 65 % as much as CO2, and other short - lived pollutants (such as aerosols) also cause some cooling.

That's a cause for concern because, among other reasons, methane traps more heat than carbon dioxide, making it a more potent greenhouse gas and thus of concern for global warming, according to a study detailing the trip's findings and published recently in the journal Atmospheric Environment.

Then in 1987, Congress, recognizing that «man - made pollution — the release of carbon dioxide, chlorofluorocarbons, methane and other trace gases into the atmosphere — may be producing a long - term and substantial increase in the average temperature on Earth,» passed the Global Climate Protection Act.

Other gases that contribute to global warming — such as methane from waste — are converted into «carbon equivalent» units then added to the carbon footprint.

This is because over the past three years, hundreds of new scientific field accounts of global warming's impacts, as well as improved peer - reviewed analyses of global warming itself in both the deep past and the very near future, have depicted earth's atmosphere as far more «sensitive» to the invisible CO2, methane and other human - sourced greenhouse gases than had been hoped.

Choices regarding emissions of other warming agents, such as methane, black carbon on ice / snow, and aerosols, can affect global warming over coming decades but have little effect on longer - term warming of the Earth over centuries and millennia.

Other researchers argue that long - term global warming might be to blame — and that a slow and steady thaw in the region could have been enough to free a burst of methane and create such a big crater.

1 Executive Summary 2 Scope of the Report 3 The Case for Hydrogen 3.1 The Drive for Clean Energy 3.2 The Uniqueness of Hydrogen 3.3 Hydrogen's Safety Record 4 Hydrogen Fuel Cells 4.1 Proton Exchange Membrane Fuel Cell 4.2 Fuel Cells and Batteries 4.3 Fuel Cell Systems Durability 4.4 Fuel Cell Vehicles 5 Hydrogen Fueling Infrastructure 5.1 Hydrogen Station Hardware 5.2 Hydrogen Compression and Storage 5.3 Hydrogen Fueling 5.4 Hydrogen Station Capacity 6 Hydrogen Fueling Station Types 6.1 Retail vs. Non-Retail Stations 6.1.1 Retail Hydrogen Stations 6.1.2 Non-Retail Hydrogen Stations 6.2 Mobile Hydrogen Stations 6.2.1 Honda's Smart Hydrogen Station 6.2.2 Nel Hydrogen's RotoLyzer 6.2.3 Others 7 Hydrogen Fueling Protocols 7.1 SAE J2601 7.2 Related Standards 7.3 Fueling Protocols vs. Vehicle Charging 7.4 SAE J2601 vs. SAE J1772 7.5 Ionic Compression 8 Hydrogen Station Rollout Strategy 8.1 Traditional Approaches 8.2 Current Approach 8.3 Factors Impacting Rollouts 8.4 Production and Distribution Scenarios 8.5 Reliability Issues 9 Sources of Hydrogen 9.1 Fossil Fuels 9.2 Renewable Sources 10 Methods of Hydrogen Production 10.1 Production from Non-Renewable Sources 10.1.1 Steam Reforming of Natural Gas 10.1.2 Coal Gasification 10.2 Production from Renewable Sources 10.2.1 Electrolysis 10.2.2 Biomass Gasification 11 Hydrogen Production Scenarios 11.1 Centralized Hydrogen Production 11.2 On - Site Hydrogen Production 11.2.1 On - site Electrolysis 11.2.2 On - Site Steam Methane Reforming 12 Hydrogen Delivery 12.1 Hydrogen Tube Trailers 12.2 Tanker Trucks 12.3 Pipeline Delivery 12.4 Railcars and Barges 13 Hydrogen Stations Cost Factors 13.1 Capital Expenditures 13.2 Operating Expenditures 14 Hydrogen Station Deployments 14.1 Asia - Pacific 14.1.1 Japan 14.1.2 Korea 14.1.3 China 14.1.4 Rest of Asia - Pacific 14.2 Europe, Middle East & Africa (EMEA) 14.2.1 Germany 14.2.2 The U.K. 14.2.3 Nordic Region 14.2.4 Rest of EMEA 14.3 Americas 14.3.1 U.S. West Coast 14.3.2 U.S. East Coast 14.3.3 Canada 14.3.4 Latin America 15 Selected Vendors 15.1 Air Liquide 15.2 Air Products and Chemicals, Inc. 15.3 Ballard Power Systems 15.4 FirstElement Fuel Inc. 15.5 FuelCell Energy, Inc. 15.6 Hydrogenics Corporation 15.7 The Linde Group 15.8 Nel Hydrogen 15.9 Nuvera Fuel Cells 15.10 Praxair 15.11 Proton OnSite / SunHydro 15.11.1 Proton Onsite 15.11.2 SunHydro 16 Market Forecasts 16.1 Overview 16.2 Global Hydrogen Station Market 16.2.1 Hydrogen Station Deployments 16.2.2 Hydrogen Stations Capacity 16.2.3 Hydrogen Station Costs 16.3 Asia - Pacific Hydrogen Station Market 16.3.1 Hydrogen Station Deployments 16.3.2 Hydrogen Stations Capacity 16.3.3 Hydrogen Station Costs 16.4 Europe, Middle East and Africa 16.4.1 Hydrogen Station Deployments 16.4.2 Hydrogen Station Capacity 16.4.3 Hydrogen Station Costs 16.5 Americas 16.5.1 Hydrogen Station Deployments 16.5.2 Hydrogen Station Capacity 16.5.3 Hydrogen Station Costs 17 Conclusions 17.1 Hydrogen as a Fuel 17.2 Rollout of Fuel Cell Vehicles 17.3 Hydrogen Station Deployments 17.4 Funding Requirements 17.5 Customer Experience 17.6 Other Findings

The researchers came up with the 2016 Global Methane Budget, which provided a comprehensive look at how methane had flowed in and out of the atmosphere from 2000 to 2012 because of human activities and other sMethane Budget, which provided a comprehensive look at how methane had flowed in and out of the atmosphere from 2000 to 2012 because of human activities and other smethane had flowed in and out of the atmosphere from 2000 to 2012 because of human activities and other sources.

Other theories suggest runaway global warming was involved, due either to release of sea - floor methane clathrates, or even burning coal fields.

Also, while we have good atmospheric measurements of other key greenhouse gases such as carbon dioxide and methane, we have poor measurements of global water vapor, so it is not certain by how much atmospheric concentrations have risen in recent decades or centuries, though satellite measurements, combined with balloon data and some in - situ ground measurements indicate generally positive trends in global water vapor.»

As we continue working to reduce carbon dioxide, methane, and other greenhouse gas emissions, we must ensure federal actions do not «significantly exacerbate» global warming.

In other words, the U.S. is leading all industrialized nations in CO2 reductions — the greenhouse gas responsible for three - fourths of global warming, according to this report — and is also reducing methane emissions that represent a relatively minuscule contribution to the overall GHG radiative forcing (i.e. global warming) identified in this report.

May's assertion that «CO2 is, of course, the principal «greenhouse gas» in the atmosphere» is just as questionable, given that water vapour has far more influence on the global greenhouse, and other gases such as methane are more potent, measure for measure.

Carbon dioxide is the biggest long - term human - generated contributor to global warming — other molecules like methane and water vapor are also greenhouse gases, but their levels are more or less constant; the amount of anthropogenic CO2 has been going up steadily for decades and is higher now than in any point in human history.

This leads me to believe that CO2 forcing is a minor component of the temperature rise (even Hansen in his paper «Global Warming in the 21st century, an Alternative Scenario» has assigned much warming to e.g. black carbon, methane etc, and an inquisitive mind might easily think of others such as albedo change).

Global warming, the gradual heating of Earth's surface, oceans and atmosphere, is caused by human activity, primarily the burning of fossil fuels that pump carbon dioxide (CO2), methane and other greenhouse gases into the atmosphere.

Global average radiative forcing (RF) estimates and ranges in 2005 for anthropogenic carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and other important agents and mechanisms, together with the typical geographical extent (spatial scale) of the forcing and the assessed level of scientific understanding (LOSU).

In other words, even if claims by EDF and virtually every other environmental group that U.S. oil and gas methane emissions are underestimated — they are almost certainly not a significant percentage of global emissions.

RealClimate is wonderful, and an excellent source of reliable information.As I've said before, methane is an extremely dangerous component to global warming.Comment # 20 is correct.There is a sharp melting point to frozen methane.A huge increase in the release of methane could happen within the next 50 years.At what point in the Earth's temperature rise and the rise of co2 would a huge methane melt occur?No one has answered that definitive issue.If I ask you all at what point would huge amounts of extra methane start melting, i.e at what temperature rise of the ocean near the Artic methane ice deposits would the methane melt, or at what point in the rise of co2 concentrations in the atmosphere would the methane melt, I believe that no one could currently tell me the actual answer as to where the sharp melting point exists.Of course, once that tipping point has been reached, and billions of tons of methane outgass from what had been locked stores of methane, locked away for an eternity, it is exactly the same as the burning of stored fossil fuels which have been stored for an eternity as well.And even though methane does not have as long a life as co2, while it is around in the air it can cause other tipping points, i.e. permafrost melting, to arrive much sooner.I will reiterate what I've said before on this and other sites.Methane is a hugely underreported, underestimated risk.How about RealClimate attempts to model exactly what would happen to other tipping points, such as the melting permafrost, if indeed a huge increase in the melting of the methal hydrate ice WERE to occur within the next 50 years.My amateur guess is that the huge, albeit temporary, increase in methane over even three or four decades might push other relevent tipping points to arrive much, much, sooner than they normally would, thereby vastly incresing negative feedback mechanisms.We KNOW that quick, huge, changes occured in the Earth's climate in the past.See other relevent posts in the past from Realclimate.Climate often does not change slowly, but undergoes huge, quick, changes periodically, due to negative feedbacks accumulating, and tipping the climate to a quick change.Why should the danger from huge potential methane releases be vievwed with any less trepidation?

To summarize, both the modeling studies mentioned above and the IPCC 2007 report show that where global warming and global climate change is concerned, it is important to consider the impact from molecules other than just CO2 and methane.

Although projected CO2 concentrations in a «methane economy» are low in relation to other scenarios, the projections confirm that global climate warming is likely to be a major planetary concern throughout the twenty - first century.

Hansen et al. argued in 2000 that global warming in recent decades has been driven by green house gases (GHGs) other than CO2, such as chlorofluorocarbons (CFCs), methane, and nitrous oxide (1).

Other surprises include the recognition that reducing methane emissions from whatever source has important indirect impacts on a range of other drivers and is a more effective strategy for short - term reductions in global warming than had been previously recognOther surprises include the recognition that reducing methane emissions from whatever source has important indirect impacts on a range of other drivers and is a more effective strategy for short - term reductions in global warming than had been previously recognother drivers and is a more effective strategy for short - term reductions in global warming than had been previously recognized.

Whereas the greenhouse effect is a naturally occurring process, its enhancement due to increased release of greenhouse gases (CO2 and other gases, such as methane and ozone) is called global warming.

To help address global climate change problem, the city would send carbon contamination from power plants and other area based sources down to the ocean depths, where microorganisms would convert into methane gas.

New York City About Blog The Carbon Tax Center («CTC») was launched in January 2007 to give voice to Americans who believe that taxing emissions of carbon dioxide along with commensurate taxes on methane and other greenhouse gases is imperative to reduce global warming.