41. Greenhouse Gases - Future Retrieved from http//future.wikia.com/wiki/greenhouse_gases . Category Environment. Views. Article; Discussion; Edit; History; Report a problem http://future.wikia.com/wiki/Greenhouse_Gases

@import "http://images.wikia.com/common/skins-200804.1/wikia/css/Monobook.css?20080331165760"; Greenhouse Gases From Future Jump to: navigation search Greenhouse Gasses Greenhouse gases such as CO2 (carbon dioxide) and CH4 (methane) will become more noticed in the future, and the populace will pressure the politicans of each nation to endorse greenhouse-gas-emission-reduction plans such as the Kyoto Protocols. Once that is accomplished, and hand-in-hand with plans for placing atmospheric carbon dioxide into carbon sinks (see Iron Seeding ), the amount of greenhouse gases in the future will noticeably decline. Global Warming Retrieved from " http://future.wikia.com/wiki/Greenhouse_Gases Category Environment Views Article Discussion Edit this page History ... Report a problem Personal tools Log in / create account tutorial for starters Main Page Introduction Guidelines explore the future Library Categories Featured Article Community Portal ... Random Article developer's toolbox All Pages Long Pages Recent Changes Search developer's corner What links here Related changes Upload image/file Special pages ... Permanent link wikia Wikia Home Report a problem Live wiki help Wikia messages: ... Wikia is hiring for several open positions This page was last modified 21:41, 17 April 2007.

42. Greenhouse Gases You are viewing the technical text. Greenhouse Gases. Despite their relative scarcity, the socalled greenhouse gases play an important role in the http://www.ace.mmu.ac.uk/eae/Climate_Change/Older/Greenhouse_Gases.html

Greenhouse Gases Despite their relative scarcity, the so-called greenhouse gases play an important role in the regulation of the Earth's energy balance . Greenhouse gases in the atmosphere trap infrared heat energy trying to escape back to space. In doing so they raise the temperature of the lower atmosphere and the Earth's surface in contact with it. This warming process is called the natural greenhouse effect , but during the last 200 years, mankind's pollution of the atmosphere with extra greenhouse gases has enhanced this natural greenhouse effect that may be contributing to global warming Greenhouse gases include any gas in the atmosphere that is capable, as a result of its particular molecular structure, of absorbing infrared radiation or heat. They are called greenhouse gases because they behave like glass in a greenhouse gas, allowing sunlight to pass through but trapping the heat formed and preventing it from escaping, thereby causing a rise in temperature. Natural greenhouse gases include water vapour or moisture, carbon dioxide, methane, nitrous oxide and even ozone, which is more commonly associated with the ozone layer and ultraviolet radiation. The amounts of all these gases in the atmosphere are now being increased as a result of man-made processes, such as fossil fuel burning and deforestation. The atmospheric concentration of carbon dioxide, for example, has increased by 30% since the 18 th century, whilst levels of methane have more than doubled. Water vapour, whilst not directly released by man-made processes in substantial quantities, may be increasing as a result of

43. CRC For Greenhouse Accounting - About Greenhouse: Greenhouse Gases Greenhouse Accounting is on providing research outputs for landbased greenhouse emissions accounting at the national and project levels. http://www.greenhouse.crc.org.au/about_greenhouse/greenhouse_gases.cfm

About Greenhouse > Greenhouse effect > Greenhouse gases > Carbon cycle ... about greenhouse > Greenhouse gases Greenhouse gases Greenhouse gases are a natural part of the Earth's atmosphere, trapping radiation from the Earth's surface to keep the Earth's temperature warm enough to support life. This natural cycle is called the greenhouse effect . Human activities, such as burning fossil fuels and land clearing, are increasing the concentration of greenhouse gases in the atmosphere, leading to global warming and changing climate. The most common greenhouse gas is water vapour, however, human activities have little direct impact on its concentration. The main greenhouse gases that are increasing in concentration due to human activities are carbon dioxide, methane, nitrous oxide and chlorofluorocarbons (CFCs). Carbon dioxide (CO Carbon dioxide is absorbed by plants, which store the carbon in roots, stems, leaves, and the soil. As plant material decomposes, the carbon is released back into the atmosphere as carbon dioxide in a cycle that has been continuing naturally since plant life took hold on the land about 400 million years ago.

44. AskMe: Who Makes Greenhouse Gases? Anonymous asked this question on 5/13/2000 1.what are the characteristics of each gas that make up the atmosphere? 2. where do green house gases come from? http://www.ontheissues.org/askme/greenhouse_gases.htm

Who makes greenhouse gases? Anonymous asked this question on 5/13/2000: 1.what are the characteristics of each gas that make up the atmosphere? 2. where do green house gases come from? 3.What produce them? 4.how long do they stay at the atmosphere once they are released? 5.how much each gas is produced each year? 6.which countries produce the most green house gases? 7.How are these green house gases released into the atmosphere? JesseGordon gave this response on 5/14/2000: Wow, that's a lot of questions. I'll answer each one briefly and give web addresses or keywords where you can look up more. 1. The main gases in the atmosphere (and their approximate percentages) are Nitrogen (79%), Oxygen (20%), Argon (under 1%) and carbon dioxide (CO2, under 1%). Everything is pretty much "trace quantities," but they're important traces. Look up "atmospheric chemistry" for more on this it varies significantly at higher altitudes. 2. "Greenhouse gases" (GHGs) means any gas that contributes to warming the atmosphere by retaining heat from sunlight. CO2 is the most important only because there's the most of it. Methane, ozone, and numerous other gases are actually "stronger" greenhouse gases, because they retain more heat, but have less overall effect because there's less of them. For details see http://webmerchants.com/spectrum/ghg.htm#2 (chapter 2 of a paper I wrote on GHGs) 3. Those gases are all produced naturally as well as by industrial sources. CO2 comes from bio-degrading logs, as well as from burning oil. Methane is also known as "swamp gas" and comes from normal biological processes in swamps, as well as from commercial cow operations. Ozone is produced by lightning (it's that lightning smell), as well as from industrial processes. For discussions of global warming, we only care about the man-made processes, of course.

45. Greenhouse Gases - Appropedia: The Sustainability Wiki From Appropedia. Redirect page. Jump to navigation, search. Greenhouse gas emissions. Retrieved from http//www.appropedia.org/greenhouse_gases http://www.appropedia.org/index.php?title=Greenhouse_gases&redirect=no

46. Greenhouse Gases - Wikipedia Retrieved from http//nostalgia.wikipedia.org/wiki/greenhouse_gases . This page was last modified 1445, 17 August 2001. Content is available under GNU http://nostalgia.wikipedia.org/wiki/Greenhouse_gases

Greenhouse gases From Wikipedia HomePage Recent changes View source Page history ... Log in Special pages Double redirects Broken redirects Disambiguation pages Log in Preferences My watchlist Recent changes Upload file File list Gallery of new files User list Statistics Random page Orphaned pages Uncategorized pages Uncategorized categories Uncategorized files Uncategorized templates Unused categories Unused files Wanted pages Wanted categories Most linked to pages Most linked to categories Most linked-to templates Pages with the most categories Most linked to files Pages with the most revisions Pages with the fewest revisions Short pages Long pages New pages Oldest pages Dead-end pages Protected pages Protected titles All pages Prefix index List of blocked IP addresses and usernames User contributions What links here Book sources Categories Export pages Version System messages Logs MIME search Search for duplicate files List redirects Unused templates Random redirect Pages without language links File path Search List of Wikimedia wikis Expand templates CategoryTree Gadgets Parser diff test Cross-namespace links Wikimedia Board of Trustees election Search web links Printable version Greenhouse gases are responsible for the greenhouse effect and contribute to global warming Such gases are for instance carbon dioxide methane nitrous oxide water vapor and chlorinated fluorocarbons (CFCs) such as freon Since the beginning of the Industrial Revolution , the concentrations of many of the greenhouse gases have increased.

47. Greenhouse Gases - Biocrawler From Biocrawler. Greenhouse gas. Retrieved from http//www.biocrawler. com/encyclopedia/greenhouse_gases http://www.biocrawler.com/w/index.php?title=Greenhouse_gases&redirect=no

48. Greenhouse Gases Greenhouse Gases. Scientists have identified four gases produced by human activities as the principal contributors to the greenhouse effect that is widely http://www.gassep.com/Greenhouse_gases.htm

Greenhouse Gases Scientists have identified four gases produced by human activities as the principal contributors to the greenhouse effect that is widely perceived to be responsible for a global warming trend that is believed will have serious consequences for our overall environment. These are, in order of their impact, carbon dioxide, methane, CFC's and nitrous oxide. Carbon dioxide is produced mainly by the burning of fossil fuels and it will be difficult and expensive to make significant long term reductions. Methane, which pound for pound is twenty times more potent than carbon dioxide for trapping heat in the atmosphere, comes from several sources where presently available or near term technology can make significant reductions in emissions. These sources are in order of their importance, landfills, livestock, coal mines, natural gas production and transportation, and livestock manure. Gas Separation Technology's Carbo-X TM and Air-X TM processes are designed to help utilize and therefore reduce methane emissions from three of these sourceslandfills, coal mining and livestock manure.

49. CategoryGreenhouse Gases - Indopedia, The Indological Knowledgebase Retrieved from http//www.indopedia.org/Categorygreenhouse_gases.html . This page has been accessed 30 times. This page was last modified 0157, http://www.indopedia.org/Category:Greenhouse_gases.html

50. Alcoa: Environment: Working To Reduce Greenhouse Gases Greenhouse gases (GHG) affect the climate, and Alcoa recognizes that the risk of climate change is a vitally important issue that requires action. http://www.alcoa.com/global/en/environment/initiatives/greenhouse_gases.asp

contact us go Worldwide Markets Aerospace Alumina Aluminum Ingot Automotive ... Commercial Transportation About Alcoa Overview It all starts with dirt Corporate Governance Alcoa Business System ... Contact Alcoa Community Overview Alcoa Foundation Combined Community Investing Employee Volunteer Initiatives ... Contact Us Environment Highlights Environment Health and Safety Global EHS Goals ... Sustainability News Headlines News Releases What's New at Alcoa As Others See Us ... Presentations Invest Overview Annual Report Analyst Presentations Financial Calendar ... Products Innovation Overview Open Innovation Capabilities Consumer Electronics ... Papers and Patents Select a country, a year, or both from the menu below to view other progress reports. Select a country Australia Brazil Canada France Germany Hungary Iceland Italy Mexico Romania Spain St. Croix Suriname The Netherlands USA Worldwide All Select a year All Worldwide - 2001 Working to Reduce Greenhouse Gases Greenhouse gases (GHG) affect the climate, and Alcoa recognizes that the risk of climate change is a vitally important issue that requires action. We have agreed to reduce our direct GHG emissions to 25% below the 1990 baseline on a worldwide basis by 2010. Here is an example of how we're moving toward this goal. Aluminum smelters periodically emit small amounts of a GHG known as perfluorocarbon (PFC) gases, which can trap and retain heat in the atmosphere. These emissions usually occur when there is an unplanned interruption to the electrolytic smelting process, known as an anode effect.

51. Trees Ontario: Battling Greenhouse Gases Battling Greenhouse Gases. Trees Ontario Workshops Schools and Classrooms Trees Ontario Library Web Links Trees Ontario Newsletter http://www.treesontario.on.ca/learn/index.php/greenhouse_gases

Who We Are Our Partners For Landowners How to Donate ... Why are trees important? Battling Greenhouse Gases Trees Ontario Workshops Schools and Classrooms Trees Ontario Library Web Links ... Get Involved Search Site: HOW TREES ARE HELPING IN THE BATTLE AGAINST GREENHOUSE GASES: SOME FACTS AND FIGURES Heat from the earth is trapped in the atmosphere due to high levels of carbon dioxide (CO ) and other heat-trapping gases that prevent heat from being released into space – creating a phenomenon known as the "greenhouse effect." Increasingly, carbon dioxide is being recognized as a "greenhouse gas" pollutant with potentially devastating consequences, which include global warming, dramatic changes in rainfall patterns, and rising sea levels that threaten flooding in coastal cities. Trees and forests are playing a vital role in helping to counteract the increase of this gas in the atmosphere: Trees sequester (trap) carbon dioxide (CO ) from the atmosphere. They do this during photosynthesis to form carbohydrates that are used in plant structure/function and return oxygen back to the atmosphere as a byproduct. About half of the greenhouse effect is caused by CO Trees therefore act as a “carbon sink” by removing the carbon and storing it as cellulose in their trunk, branches, leaves and roots, while releasing oxygen back into the air.

52. Greenhouse Gases Natural Causes. There are many causes to global warming. Compared to humans, though, these seem to be very few. There are a few major natural causes. http://library.thinkquest.org/06aug/00402/greenhouse_gases.html

Green House Gases: Friend or Foe? Natural Causes The Fight There is a controversy over the fact that humans are causing global warming more than natural causes. Many scientists say that global warming is caused by the oceans heating up, not the atmosphere. They have right to believe this, since the oceans are warmer than the air. Scientists also say that there is no truly correct technique to find out the CO2 levels in the Atmosphere. The scientists also say that there isn’t a lot to worry about, since every ice age starts with the warming of the Earth, and that this is a normal, natural process. They also say that we are being lied to. Though we are told that we put out 8.3 giga tons, they don’t tell us what it’s out of. In reality it is out of 750 giga tons of CO2. Go to Home Go to The Causes Go to Human Effects Go to Regional Effects Go to An Inconvenient Truth Go to The Future Go to Glossary Go to Greenhouse Gases Go to Global Warming Video

53. Greenhouse Gas Emissions Reporting And Disclosure Pilot - Greenhouse Gases Partnerships and projects Publications and Library Reporting pollution Students Sustainable business and industry. Site tools. Change size http://www.epa.vic.gov.au/greenhouse/greenhouse_pilot/greenhouse_gases.asp

@import "/css/main.css"; Skip to content Quick links: Site map Subscribe Careers Contact details Main navigation: About EPA Air Land Noise ... Sustainable business and industry Site tools: Change size Small text size Large text size Print You are here: Home Greenhouse Greenhouse Gas Emissions Reporting and Disclosure Pilot Greenhouse gases Global warming is caused by a number of gases, each with its own potential to trap heat in the Earth's atmosphere. This section provides information about the sources of six major greenhouse gases in the atmosphere emitted by human activities and their respective global warming potentials: carbon dioxide (CO methane (CH nitrous oxide (N O) hydrofluorocarbons (HFCs) perfluorocarbons (PFCs) sulphur hexafluoride (SF Carbon dioxide (CO Carbon dioxide (CO ) is released in large quantities from natural processes, notably respiration by living organisms. Releases from respiration are balanced by a similar quantity taken up by photosynthesis. Other natural sources of CO include volcanoes, forest fires and evaporation from seawater. Man-made CO

54. Greenhouse Gases - Wiki Your Tail Off Most likely the work of the evil Carl Pohlad. Retrieved from http//www.battleyourtailoff.com/wiki/index.php?title=greenhouse_gases http://www.battleyourtailoff.com/wiki/index.php?title=Greenhouse_gases

55. Greenhouse Gases Future temperature change is dependent on levels of atmospheric greenhouse gases, in particular CO2, and to a lesser extent methane and other greenhouse http://www.lloyds.com/News_Centre/360_risk_project/Climate_change/Adapt_or_bust/

Lloyd's - Greenhouse gases Log in Register Home News Centre ... Adapt or bust News Centre 360 risk project Climate change Adapt or bust Key issues Greenhouse gases Sea temperatures Sea levels ... Conclusions Future temperature change is dependent on levels of atmospheric greenhouse gases, in particular carbon dioxide, and to a lesser extent methane and other greenhouse gases. Atmospheric carbon dioxide concentrations are rising fast due almost entirely to human activity. Current levels are the highest for at least 650,000 years. In the past about half of all carbon dioxide emissions have been absorbed by natural ‘sinks’ in ecosystems and oceans. However, rising temperatures could reverse this process. Methane is also known to contribute to temperature change. Concentrations have risen fast and are now at their highest for at least 420,000 years. What does it all mean? The growing body of evidence on greenhouse gases suggests that climate change is inevitable. Even if man stopped producing greenhouse gas emissions immediately, we will still experience rising temperatures for decades to come and sea temperatures will continue to rise for many centuries. What next?

56. Topic Guide: The Greenhouse Effect Topic Guide The Greenhouse Effect. In this activity you will form groups, conduct research into greenhouse gases and the greenhouse effect, and report back http://earthednet.org/Ocean_Materials/Mini_Studies/Greenhouse_gases/Greenhouse_g

Topic Guide: The Greenhouse Effect Overview: The greenhouse effect is responsible for warming the earth by about 33 C. Key processes and concepts to review before beginning: Earth radiation balance Incident solar radiation and its variation with latitude Do the WorldWatcher"First-Timer Seasons Activity" Resources: World Wide Web WorldWatcher CD Your textbook The greenhouse effect is a phrase that describes how water vapor, carbon dioxide, and other gases in the atmosphere aid in the maintenance of the Earth's surface temperature After completing this investigation you should be able to: Know the concentrations and importance of various greenhouse gases Understand the importance of the greenhouse effect on climate Understand energy flux diagrams. Background information: Browse the links listed below to answer the questions posed below. You will not have time to read all of the resources in detail, but be sure to browse them sufficiently so that you can find the information for later review and your position papers. Be sure that you save some time to explore the data on the WorldWatcher CD (under Data , below). You may wish to assign various members of your group to different questions.

57. Greenhouse Gases People, places or buildings with renewable power and own water supply. How to leave a lighter footprint on the planet. The tools to set you free. http://www.off-grid.net/tag/greenhouse_gases/

@import url( http://www.off-grid.net/wordpress/wp-content/themes/newgrid/style.css ); Categories CITY SCAVENGER COMMUNITY DITCHMONKEY EVENTS ... DIRECTORY Sections Select section... HOMESTEADING NATURAL ENERGY WATER FOR LIFE TERRITORY NEW PIONEER MIND, BODY AND SPIRIT CITY SCAVENGER LISTINGS EVENTS FOOD ON THE MOVE WORK COMMUNITY SOLAR POWER SELF-SUFFICIENCY DITCHMONKEY DIRECTORY Go to Forum About Us OFF GRID in the USA? WE WANT TO VISIT YOU Filming an independent documentary about people who are living off-grid but facing opposition from neighbors. Please contact nick (at) off-grid.net WALDEN FIRST EDITION 1852 - fully authenticated - fine condition - $17,500 - all proceeds to off-grid web site. Please contact book (at) off-grid.net Posts tagged with: greenhouse gases Time for Gore to endorse Obama 15 Feb 2008 - 0118PM tagged al gore climate change democratic party convention earth day ... senator obama and youth vote When he was VP, Gore cynically abandoned the environmental movement. This is his chance to make good. Comments (0) EDITOR'S PICKS Why we support Barak Eco-pimp your home Sean Penn, "Into the Wild"

58. GREENHOUSE GASES www.solarnavigator.net Greenhouse Gases, mankind, industrialisation and fossil fuels as the causes of global warming. http://www.solarnavigator.net/greenhouse_gases.htm

GREENHOUSE GASES HOME BIOLOGY FILMS GEOGRAPHY ... SPORT 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 such as burning of fossil fuel and coal. Greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. The "Greenhouse effect" When sunlight reaches the surface of the Earth, some of it is absorbed and warms the Earth. Because the Earth's surface is much cooler than the sun , it radiates energy at much longer wavelengths than does the sun. The atmosphere absorbs these longer wavelengths more effectively than it does the shorter wavelengths from the sun. The absorption of this longwave radiant energy warms the atmosphere; the atmosphere also is warmed by transfer of sensible and latent heat from the surface. Greenhouse gases also emit longwave radiation both upward to space and downward to the surface. The downward part of this longwave radiation emitted by the atmosphere is the "greenhouse effect." The term is a misnomer, as this process is not the mechanism that warms greenhouses.

59. Global Warming [Archive] - Iron Addicts Forums http//en.wikipedia.org/wiki/greenhouse_gases http//www.geocraft. com/WVFossils/greenhouse_data.html http://www.ironaddicts.com/forums/archive/index.php?t-11414.html

60. Greenhouse Gases Greenhouse gases (GHGs) are gaseous components of the atmosphere that contribute to the greenhouse effect. http://www.carbonqueensland.com/greenhouse_gases.htm

CARBONqueensland Your local provider of Carbon offsets Home About Contact Sitemap ... Home Climate Change Greenhouse Gases :: Overview [ from Wikipedia, the free online encyclopedia Greenhouse gases (GHGs) are gaseous 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. Human activity increases the greenhouse effect primarily through release of carbon dioxide, but human influences on other greenhouse gases can also be important. Some of the main sources of greenhouse gases due to human activity include:    burning of fossil fuels and deforestation leading to higher carbon dioxide concentrations; livestock and paddy rice farming, land use and wetland changes, pipeline losses, and covered vented landfill emissions leading to higher methane atmospheric concentrations.   use of chlorofluorocarbons (CFCs) in refrigeration systems, and use of CFCs and

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