List three greenhouse gases look up their sources and at least one way that they could be reduced 631483-List three greenhouse gases look up their sources and at least one way that they could be reduced

Nitrous oxide, N 2 O;Landfills 722 1,803 Nitrous OxideYour carbon footprint is the amount of greenhouse gases—including carbon dioxide, methane, nitrous oxide, fluorinated gases and others—that you produce as you live your life

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List three greenhouse gases look up their sources and at least one way that they could be reduced

List three greenhouse gases look up their sources and at least one way that they could be reduced-Greenhouse gases are gases that can trap heat They get their name from greenhouses A greenhouse is full of windows that let in sunlight That sunlight creates warmth The big trick of a greenhouse is that it doesn't let that warmth escape That's exactly how greenhouse gases act They let sunlight pass through the atmosphere, but they prevent theBy increasing the concentration of greenhouse gases in the atmosphere, we're amplifying the planet's natural greenhouse effect and turning up

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Greenhouse gases arise naturally, and are part of the makeup of our atmosphere Earth is sometimes called the "Goldilocks" planet – it's not too hot, not too cold, and the conditions are just right to allow life, including us, to flourish Part of what makes Earth so amenable is the naturallyarising greenhouse effect, which keeps the planet at a friendly 15Greenhouse gases that occur both naturally and from human activities include water vapor, carbon dioxide (CO 2 ), methane (CH 4 ), nitrous oxide (N 2 O) and ozone (O 3) Other greenhouse gases have essentially no natural sources, but are side products of industrial processes or manufactured for human purposes such as cleaning agentsFluorinated gases (F gases) Account for around 1% of the warming impact of current human greenhousegas emissions Key sources are industrial processes Fgases are even more potent per gram

Let us have a look at the greenhouse gases and the causes and consequences of greenhouse effects Nitrous oxide used in fertilizers is one of the contributors to the greenhouse effect in the atmosphere Industrial Waste and Landfills The industries and factories produce harmful gases which are released in the atmosphere Landfills also release carbonAs a result, they predict the average global temperature will increase by about 02 degrees Celsius (036 degrees Fahrenheit) per decade Even if we reduce greenhouse gas and aerosol emissions to their 00 levels, we can still expect a warming of about 01 degree Celsius (018 degrees Fahrenheit) per decadeLet's consider the principal GHGs one at a time, starting with water vapor, the most abundant greenhouse gas in the atmosphere according to NOAA's National Climatic Data Center (NCDC) Water Vapor Carbon Dioxide (CO 2) Methane (CH 4) Nitrous oxide (N 2 O) Fluorinated Gases (HFCs, PFCs, SF 6) References and Resources

Greenhouse Gases Carbon Dioxide, Water Vapor, Nitrous Oxide, Aerosols Share of Global GHG Emissions 15% A jet airliner leaves condensation trails in the sky The trails are formed by soot and water vapor from the plane engines which burn kerosene Aircraft emissions of water vapor, nitrous oxides, aerosols and CO2 at altitude could be two to four times stronger thanAlthough greenhouse gases make up only about 1 percent of the Earth's atmosphere, they regulate our climate by trapping heat and holding it in a kind of warmair blanket that surrounds the planetGreenhouse Gases CHAPTER 4 Why some gases are greenhouse gases, but most aren't, and some are stronger than others About Gases The layer model is what is called an idealization of the real world It has the essential ingredient of the greenhouse effect, but it is missing numerous things that are important in the real atmosphere Starting from the Layer Model, the next few

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Aside from water vapour, the four principal greenhouse gases are carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and the halocarbons or CFCs (gases containing fluorine, chlorine and bromine)One example is Atmosfair, that uses an emissions calculator to figure out how much greenhouse gas emissions are caused by individual flights and offers carbon offsets Offsets are typically achieved through financial support of projects that reduce the emission of greenhouse gases in the short or longterm The most common type of project isMitigation – reducing climate change – involves reducing the flow of heattrapping greenhouse gases into the atmosphere, either by reducing sources of these gases (for example, the burning of fossil fuels for electricity, heat or transport) or enhancing the "sinks" that accumulate and store these gases (such as the oceans, forests and soil)

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To express all greenhouse gases in carbon dioxide equivalents (CO 2eq), they are each weighted by their global warming potential (GWP) value GWP measures the relative warming impact one molecule or unit mass of a greenhouse gas relative to carbon dioxide over a given timescale – usually over 100 years For example, one tonne of methane would have 34 times the warming impact of tonne of carbon dioxide over a 100year period GWP100 values are used to combine greenhouse gasesWhen we talk about greenhouse gases, we're referring to carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulphur hexafluoride How are greenhouse gases changing the climate?One class of greenhouse gas chemicals that has no natural sources is the fluorinated gases These include HFCs, PFCs, and SF6, among others Because these are synthetic chemicals that are only created by humans, these gases were essentially nonexistent before the industrial revolution These synthetic gases are used for a wide variety of applications, from refrigerants to semiconductor manufacturing, and propellants to fire retardants They

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Table 1 lists the GWP of the three main greenhouse gases (based on a 100year time horizon) As the table shows, a given molecule of nitrous oxide has over 300 times the impact on global warming as does a molecule of carbon dioxide Table 1 Global Warming Potential of greenhouse gases4 Atmospheric lifetime (years) Global Warming Potential (GWP) Carbon dioxide (CO2) Variable 1Some greenhouse gases, like carbon dioxide (CO 2) and methane (CH 4), occur naturally and play an important role in Earth's climate If they didn't exist, the planet would be a much colder place However, some human activities, such as mining and burning fossil fuels (like coal, oil and natural gas) for energy and transportation, emit molecules of CO 2 and other greenhouse gases These activities cause greenhouse gases to accumulate in the air, and as these molecules build upThe greenhouse effect happens when certain gases, which are known as greenhouse gases, accumulate in Earth's atmosphereGreenhouse gases include carbon dioxide (CO 2), methane (CH 4), nitrous oxide (N 2 O), ozone (O 3), and fluorinated gases Greenhouse gases allow the sun's light to shine onto Earth's surface, and then the gases, such as ozone,

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The greenhouse effect is a natural process that warms the Earth's surface When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and reradiated by greenhouse gases Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons (CFCs)They have proposed a new way to represent shortlived greenhouse gas emissions – GWP* – which aims to be more representative of warming response 13, 14 Dr Michelle Cain, one of the lead researchers in this area, discusses the challenges of GHG metrics and the role of a new GWP* metric, in an article in the Carbon Brief hereThe most significant greenhouse gases, according to the Environmental Protection Agency (EPA), are water vapor (H2O), carbon dioxide (CO2), methane (CH4) and nitrous oxide

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Greenhouse Gases Greenhouse gases are gases—like carbon dioxide (CO 2 ), methane, and nitrous oxide—that keep the Earth warmer than it would be without them The reason they warm the Earth has to do with the way energy enters and leaves our atmosphere When energy from the sun first reaches us, it does so mainly as lightA greenhouse gas (GHG or GhG) is a gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect The primary greenhouse gases in Earth's atmosphere are water vapor (H 2 O), carbon dioxide (CO 2), methane (CH 4), nitrous oxide (N 2 O), and ozone (O 3)Nitrous oxides and fluorinated gases Additional trace gases produced by industrial activity that have greenhouse properties include nitrous oxide (N 2 O) and fluorinated gases ( halocarbons ), the latter including CFCs, sulfur hexafluoride, hydrofluorocarbons (HFCs), and

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Greenhouse gases come from all sorts of everyday activities, such as using electricity, heating our homes, and driving around town The graph to the right shows which activities produce the most greenhouse gases in the United States These greenhouse gases don't just stay in one place after they're added to the atmosphere As air moves around the world, greenhouse gases become globally mixed, which means the concentration of a greenhouse gasFortunately, the use of alternative energy sources, such as solar, wind, geothermal, and hydro energy, is gaining increased support worldwide The wind energy produced in Denmark, for example, provides about 10 percent of the country's total energy needs These methods of energy production emit no greenhouse gases once they are up and runningMajor greenhouse gases include carbon dioxide, methane, nitrous oxide, and various synthetic chemicals Carbon dioxide is widely reported as the most important anthropogenic greenhouse gas because it currently accounts for the greatest portion of the warming associated with human activities Carbon dioxide occurs naturally as part of the global carbon cycle, but human activities have increased atmospheric loadings through combustion of fossil fuels and other emissions sources

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Greenhouse gases are naturallyoccurring and manmade compounds that trap heat around the Earth, making temperatures warm enough to sustain plant and animal life When too many of these gases go into the Earth's atmosphere, it can result in an increase in global temperatures that is known as the greenhouse effectThe concentrations of greenhouse gasses in the atmosphere is determined by the balance between sources of greenhouse gasses and their removal from their atmosphere Greenhouse Gases With The Highest Emissions Volumes Carbon Dioxide from Fossil Fuels and AgroForestry Carbon dioxide is a colorless and odorless gas composed of a carbon atom and two oxygen atoms The natural sourcesReservoir gases make up about 13% of our total greenhouse gas emissions When land is flooded to make a reservoir, and plants and soil collect in the reservoir waters and downstream, this organic

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There are many greenhouse gases but these are some of the most important water vapour, H 2 O;Greenhouse gases are components of the atmosphere that contribute to the Greenhouse effect Some greenhouse gases occur naturally in the atmosphere, while others result from human activities Naturally occurring greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone Certain human activities add to the levels of most of these naturally occurring gasesThe greenhouse effect is one of the things that makes Earth a comfortable place to live The greenhouse effect works much the same way on Earth Gases in the atmosphere, such as carbon dioxide, trap heat similar to the glass roof of a greenhouse These heattrapping gases are called greenhouse gases During the day, the Sun shines through the atmosphere Earth's surface warms up

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Cement production 278,000 390,000 Methane Fossil fuel production;Carbon dioxide, CO 2;Carbon Dioxide Fossil fuel combustion;

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Greenhouse gas emissions and atmospheric concentrations have increased over the past 150 years Emissions of several important greenhouse gases that result from human activity have increased substantially since largescale industrialization began in the mid1800s Most of these humancaused (anthropogenic) greenhouse gas emissions were carbon dioxide (CO2)Greenhouse gas Major sources Preindustrial concentration (ppb) 11 concentration (ppb) Sources and Concentrations of Major Greenhouse Gases;Carbon dioxide is the most important greenhouse gas It is produced from the use of fossil fuels to generate electricity (for example, coalfired power plants) and to

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Since 10, EPA's Greenhouse Gas Reporting Program has been collecting annual emissions data from industrial sources that directly emit large amounts of greenhouse gases Generally, facilities that emit more than 25,000 metric tons of carbon dioxide equivalents per year are required to report The program also collects data from entities known as suppliers that supply certain fossil fuels and industrial gases that will emit greenhouse gasesRenewable energy sources include solar energy, geothermal, wind turbines, ocean wave and tidal energy, waste and biomass energy, and hydropower Because they do not burn fossil fuels, these renewable energy sources do not release greenhouse gases into the atmosphere as they generate electricity Nuclear energy also creates no greenhouse gas emissions, so it can be thought of asClimate change includes both global warming driven by humaninduced emissions of greenhouse gases and the resulting largescale shifts in weather patterns Though there have been previous periods of climatic change, since the midth century humans have had an unprecedented impact on Earth's climate system and caused change on a global scale

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They reduced the occupational hazard of compressor explosions, they all But ended toxic pollution (and deaths) from refrigerant gases, and they dramatically increased the variety and safety of the human food supply For 50 years, they seemed a perfect example of a benign technical solution to environmental and engineering problems, with no negative side effects of any kind We nowGreenhouse gas, any gas capable of absorbing infrared radiation (net heat energy) emitted from Earth's surface and reradiating it back to Earth's surface, thus contributing to the phenomenon known as the greenhouse effect Carbon dioxide, methane, and water vapor are the most important greenhouse gasesCarbon dioxide (top bar) is the greatest factor The second bar includes methane (CH4), nitrous oxide (N2O), and halocarbons, such as chlorofluorocarbons (CFCs) Other factors have weaker effects Credits Image from the 14 Intergovernmental Panel on Climate Change (IPCC) Synythesis Report *Terms of Use

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By increasing the concentration of greenhouse gases in the atmosphere, we're amplifying the planet's natural greenhouse effect and turning up the dial on global warmingAccepting six petitions that, in one way or another, had raised the "triggering" issue, the Court said it would decide whether federal law gave EPA the authority to reach fixed sources of greenhouse gases based upon the separate regulation of exhausts from cars and trucks It denied review of three other petitions without explaining why, but those did not directly pose anyThey assessed the effect of these foods on climatewarming greenhouse gas emissions and the amount of land and fresh water used across all stages of their production, including processing

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List of 5 Major Greenhouse Gases and their Sources the main way in which they do this is by trapping the sun's rays in our atmosphere and thus causing them to heat it up substantially more than it should do In sum, then, greenhouse gases – Contribute to the greenhouse effect – Cause global warming – Are released into the atmosphere thanks to

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Incoming Term: list three greenhouse gases look up their sources and at least one way that they could be reduced,