41. Greenhouse | What Are Greenhouse Gases? greenhouse gases are those gaseous constituents of the atmosphere, both natural and anthropogenic, that absorb and emit radiation at specific wavelengths http://www.greenhouse.nsw.gov.au/what_is_climate_change/what_are_greenhouse_gase

Home About Us Contact Us Events You are currently viewing: greenhouse What is climate change? What are greenhouse gases? Home What is climate change? What is the greenhouse effect? What is causing climate change? ... National Emissions Trading Taskforce Website Search Text Size Aa Printer Friendly Email this Page Related Reading Overview NSW Greenhouse Plan Climate Change in NSW Pt 1 Climate Change in NSW Pt 2 Living with Climate Change - an Overview of Potential Climate Change in Australia ... RealClimate - Climate Science from Climate Scientists FAQs CSIRO - Frequently Asked Questions About Climate Change CSIRO - Greenhouse Questions and Answers International Panel on Climate Change - Frequently Asked Questions New Scientist - Climate Change - A guide for the perplexed Kids' Pages Fact Sheets - Australian Greenhouse Office (suitable for students, 8-14 years old) Global Warming - Kids' Page (Pew Center on Global Warming) Climate Change Kids' Site (US Environmental Protection Agency) What are greenhouse gases? What are greenhouse gases?

42. The Greenhouse Effect To attempt to quantify the effects of greenhouse gases on the global temperature, The action of carbon dioxide and other greenhouse gases in trapping http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/grnhse.html

Greenhouse Effect The greenhouse effect refers to circumstances where the short wavelengths of visible light from the sun pass through a transparent medium and are absorbed, but the longer wavelengths of the infrared re-radiation from the heated objects are unable to pass through that medium. The trapping of the long wavelength radiation leads to more heating and a higher resultant temperature. Besides the heating of an automobile by sunlight through the windshield and the namesake example of heating the greenhouse by sunlight passing through sealed, transparent windows, the greenhouse effect has been widely used to describe the trapping of excess heat by the rising concentration of carbon dioxide in the atmosphere. The carbon dioxide strongly absorbs infrared and does not allow as much of it to escape into space. Sunlight warms your car Increasing atmospheric carbon dioxide Global warming Role in the absence of water on Venus? A major part of the efficiency of the heating of an actual greenhouse is the trapping of the air so that the energy is not lost by convection . Keeping the hot air from escaping out the top is part of the practical "greenhouse effect", but it is common usage to refer to the infrared trapping as the "greenhouse effect" in atmospheric applications where the air trapping is not applicable.

43. Leading Corporations Cutting Greenhouse Gases » Earth 911 Washington, D.C.—EPA is today commending more than 150 businesses for working to reduce their greenhouse gas (GHG) emissions and advance the nation’s http://earth911.org/blog/2007/12/04/leading-corporations-cutting-greenhouse-gase

About In The News Agency Login Find a Recycling Center what? batteries paint more where? zip or city, state Go Automotive Used Motor Oil Car Battery Tires Antifreeze Household Toys Books Fluorescent Bulbs Cleaners Asbestos Batteries Smoke Detector Fertilizer Pesticides Fungicides Electronics Mobile Phone Computer Monitor Television Speakers Printer Plastics #1 Plastic (PETE) #2 Plastic (HDPE Clear) #2 Plastic (HDPE Colored) #3 Plastic (PVC) #4 Plastic (LDPE) #5 Plastic (Polypropylene) #6 Plastic (Polystyrene) #7 Plastic (Other) Find Events Event name or keywords Go Search Articles Topic or keywords Go Account Login Username Password Login User Registration Username Must be at least 4 characters, letters and numbers only. E-Mail Address We'll send your password to this address, so triple-check it Next Let us know what you think Your Name E-Mail Address Comments Next Partner with Earth911 Your Name Position E-Mail Address Telephone Subject Advertise Presenting Brand Sponsor Content Licensing 1-800-CLEANUP Licensing Logo Licensing for Product Packaging Environmental Public Relations Campaigns Other Message Send Search Recycle Events Articles Account Login Register Contact Comments Partner Home Colorado ... Air Quality / Leading Corporations Cutting Greenhouse Gases Leading Corporations Cutting Greenhouse Gases by Earth 911 on December 4th, 2007

44. Global Warming:Understanding Greenhouse Gases For Education And Learning Software and related curriculum materials for sale. http://www.seeds2lrn.com/greenIndex.html

The Science of Global Warming About Program Content Lessons System Requirements ... Pricing and Ordering Study global warming and climate change to learn math and science. Provide your students with an authentic global climate model they can use to help them understand their environment. Get educational software that can be used for days and weeks of exciting learning. A must have addition for any climate studies! Software Reviews Additional Resource Books Other Ed Web Sites About ... Pricing and Ordering Critical Software Review: Recommended by the Eisenhower National Clearinghouse Recommended by the CoVis Program: Learning through Collaborative Visualization - Enhancing science learning to provide authentic experiences in the practice of science CoVis Program . Review by Dr. Jonathan D. W. Kahl, Director UWM CoVis Project, Assoc Professor, Atmospheric Science Name of Product: Global Warming: Understanding Greenhouse Gases Software [X] Web-Based [ ] (check one) Publishing/Parent Company: Seeds Software System Requirements (Mac/PC): Mac/Win Subject Covered: Earth Science, Physics

45. Office Of Policy And Internal Affairs You are here PI greenhouse gases Reporting Guidelines. OPIA Title. Enhancing DOE s Voluntary Reporting of greenhouse gases (1605(b)) Program http://www.pi.energy.gov/enhancingGHGregistry/index.html

Biological Sciences Carbon Sequestration Chemical Science Climate Change More... Bioenergy Coal Electric Power Fossil Fuels More... Buildings ENERGY STAR Financing Homes More... Climate Change Facilities Oversight More... Annual Energy Outlook Annual Energy Review Ask An Expert Cyber Security Facility Security Nuclear Security More... Chemical Safety Chronic Berylium Disease Facility Safety Nuclear Safety More... PI Home About Us Initiatives Library ... Links You are here: PI Enhancing DOE's Voluntary Reporting of Greenhouse Gases (1605(b)) Program Enhancing 1605b: Site Map Enhancing 1605b: Key Documents and Links Update: On April 2, 2007, DOE published in the Federal Register a Final Rule referencing corrected Technical Guidelines dated January 2007 For more information on the revised Technical Guidelines click here Future Amendments to the Guidelines: In the future, DOE will consider amendments to the guidelines in response to specific proposals or when it conducts the periodic reviews provided for in 10 CFR 300.1(f). Specific proposals for amendments to the General Guidelines or the Technical Guidelines should be made in writing to Karen Harbert, Assistant Secretary for Policy and International. Hard copies should be sent to 1000 Independence Ave., S.W., Washington, D.C., 20585, and electronic copies should be sent to:

46. Topic: Greenhouse Gases | World Resources Institute WRI s goal is to protect the global climate system from further harm due to emissions of greenhouse gases and help humanity and the natural world adapt to http://www.wri.org/topics/greenhouse-gases

@import "/sites/default/files/css/e2edf6836107d748e0626d91d8b8d744.css"; @import "/sites/default/themes/wri_main/print.css"; World Resources Institute WRI's goal is to protect the global climate system from further harm due to emissions of greenhouse gases and help humanity and the natural world adapt to unavoidable climate change. International Action U.S. Action WRI's Governance goal is to guarantee public access to information and decisions regarding natural resources and the environment. Access Initiative (TAI) Electricity Governance (EGI) Access Commitments (PP10) International Financial Flows ... New Ventures WRI's People and Ecosystems goal is to reverse rapid degradation of ecosystems and assure their capacity to provide humans with needed goods and services. Climate Governance Markets People Email Address: About WRI Staff Publications Stories ... A TOPIC: GREENHOUSE GASES Title Type Date WRI Joins Greenhouse Gas Management Institute to Train on Emissions Accounting News Release December 3, 2007 Climate Analysis Indicators Tool (CAIT) Project September 27, 2007

47. ARM Education - Studyhall: About ARM greenhouse gases are atmospheric gases that trap infrared radiation emitted from Most of the significant greenhouse gases are longlived and well-mixed. http://education.arm.gov/studyhall/globalwarming/expertgas.stm

Study Hall Home About ARM Global Warming ... Search What are Greenhouse Gases? Carbon Dioxide Methane Gas Oxides of Nitrogen Halocarbons ... Water Vapor Greenhouse gases are atmospheric gases that trap infrared radiation emitted from the earth, lower atmosphere, or clouds or aerosols and, as a result, cause positive radiative forcing (which means they enhance global warming). Many of these gases are naturally occurring and are essential to life on earth by providing a blanket for marine and terrestrial organisms. Without them, temperatures on earth would be intolerably cold. However, when their concentrations become too high, they may contribute to global warming to such an extent that they would make the earth intolerably hot. Nature has maintained these gases in the 'tolerable' range for billions of years, but human activities have been changing the concentrations of these gases since the start of the industrial revolution, around 1850. Greenhouse gases may be described as Long-lived, which means they are stable and, therefore, last years in the atmosphere

48. Clean Air World One of the key contributors to global warming is the increased emissions of greenhouse gases (GHGs). When solar radiation passes into the Earth’s atmosphere http://www.cleanairworld.org/TopicDetails.asp?parent=2

49. Is Methane Really Worse For The Environment Than Carbon Dioxide? - By Brendan I. But CO 2 isn t the only greenhouse gas worth worrying about, right? As with many of its fellow greenhouse gases, methane has become far more prevalent http://www.slate.com/id/2178595/

var PStax = 2174662;var msn_cobrand = 0; placeAd(1,'slate.health/slate') Home the green lantern Campaign 2008 Sports Slate on NPR ... Video placeAd2('health/slate','120x90',false); PRINT DISCUSS E-MAIL RECOMMEND Facebook Mixx Digg Reddit del.icio.us Furl Ma.gnolia Sphere CLOSE NEWSLETTERS PODCASTS RSS adsonar_placementId=1307707;adsonar_pid=833767;adsonar_ps=-1;adsonar_zw=134;adsonar_zh=620;adsonar_jv='ads.adsonar.com'; placeAd(3,'slate.health/slate') placeAd(6,'slate.health/slate'); More the green lantern columns Is Global Warming Caused by Water Vapor? How to think about the No. 1 greenhouse gas. Brendan I. Koerner posted Jan. 22, 2008 The Premium Premium Is high-octane gas bad for the environment? Brendan I. Koerner posted Jan. 15, 2008 The Greenest Tree What kind of tree should I plant in my back yard to soak up the most carbon? Brendan I. Koerner posted Jan. 8, 2008 Can We Turn Garbage Into Energy? The pros and cons of plasma incineration. Brendan I. Koerner posted Jan. 2, 2008 Hey, Who Turned Out the Lights? What you need to know about global dimming. Brendan I. Koerner

50. Reducing Emissions Of Other Greenhouse Gases. From Report On Research And Curren Other greenhouse gases cover a broad array of gases other than CO2, Piechart showing greenhouse gas emissions from the U.S. (by gas) http://www.climatetechnology.gov/library/2003/currentactivities/othergases.htm

New Library About Technology Areas ... Research and Current Activities Reducing Emissions of Other Greenhouse Gases Search Updated 1 December, 2003 Research and Current Activities Reducing Emissions of Other Greenhouse Gases Document # DOE/PI-0001 Dated November 2003 Also available: PDF Version of entire document [3.8 Mb] Next Page Contents Methane Recovery from Coal Mines SF6 from Magnesium Production Global Warming Potentials (100 Year Time Horizon) GAS GWP Carbon dioxide (CO2) Methane (CH4) Nitrous oxide (N2O) Hydrofluorocarbons HFC-23 HFC-125 HFC-134a HFC-143a HFC-152a HFC-227ea HFC-43-10mee Fully Fluorinated Species The concept of global warming potential (GWP) was developed to compare the ability of each GHG to trap heat in the atmosphere relative to another gas. In this case, CO2 is the reference case. Methane, for example, has a GWP of 23 over a 100-year period. This means that on a kilogram for kilogram basis, methane is 23 times more potent than CO2 over a 100-year period. (IPCC Third Assessment Report) Other greenhouse gases cover a broad array of gases other than CO2, principally methane (CH4), nitrous oxide (N2O), sulfur hexaflouride (SF6), and other chemicals that are effective global warmers. These other GHGs are more potent as energy absorbers than CO2 (per unit weight) and have cumulatively contributed between one-fifth and one-third of the total estimated global warming potential since pre-industrial times. Therefore, reducing non-CO2 GHG emissions is an important component of any GHG mitigation strategy.

51. World Data Centre For Greenhouse Gases (WDCGG) The World Data Centre for greenhouse gases (WDCGG) is one of the WDCs under the GAW programme, and to gather, archive and provide data for greenhouse gases http://gaw.kishou.go.jp/wdcgg.html

52. Global Warming Facts And Our Future - Causes Of Change - Carbon This diagram shows the relative importance of the major humanproduced greenhouse gases to current warming. CO2 is the most important followed in descending http://www.koshland-science-museum.org/exhibitgcc/causes02.jsp

53. Access : Greenhouse-gas Levels Accelerating : Nature News Levels of greenhouse gases are rising faster this decade than they did during the 1990s, according to a new analysis. The research blames the acceleration http://www.nature.com/uidfinder/10.1038/news.2007.186

Jump to main content Jump to navigation nature.com homepage ... Browse by subject Search This site All of nature.com Advanced search E-alert sign up RSS feed Subscribe ... nature journal Access To read this story in full you will need to login or make a payment (see right). Published online 22 October 2007 News Greenhouse-gas levels accelerating Decline in oceans' ability to store carbon partly to blame, study suggests. Michael Hopkin Tools Send to a Friend RSS Feeds Levels of greenhouse gases are rising faster this decade than they did during the 1990s, according to a new analysis. The research blames the acceleration on a combination of factors, including economic growth, intensive fossil-fuel use and, perhaps most worringly, an apparent decline in the oceans' ability to suck up carbon dioxide from the atmosphere. To read this story in full you will need to login or make a payment (see right). Comments Reader comments are usually moderated after posting. If you find something offensive or inappropriate, you can speed this process by clicking 'Report this comment' (or, if that doesn't work for you, email redesign@nature.com). For more controversial topics, we reserve the right to moderate before comments are published.

54. Atmospheric Greenhouse Gases These gases are commonly referred to as greenhouse gases , and the most important ones that may be influenced directly by human activity are carbon dioxide http://vathena.arc.nasa.gov/curric/land/global/greenhou.html

Atmospheric Greenhouse Gases Contents How do greenhouse gases make it warmer Sources and Losses of Greenhouse Gases Measurements of Greenhouse Gases Measurements of Air Temperature ... Teacher Talk Student Activities. Discussion topic on these pages. Science Reporting on Gases - with Teacher Talk. Plotting CO and Temperature How do Greenhouse Gases Make it Warmer? Certain trace gases in the atmosphere maintain the Earth's temperature at the average level that we have today. These gases are commonly referred to as "greenhouse gases", and the most important ones that may be influenced directly by human activity are carbon dioxide, methane, nitrous oxide, and CFC's - chlorinated fluorocarbons such as Freon. In addition, water vapor is a powerful greenhouse gas, but its concentration depends mainly on evaporation and rainfall, not on human activity. All these constituents are distributed in the atmosphere from the surface to high altitude. Incoming radiation energy from the Sun, mostly visible light, penetrates the atmosphere and reaches the Earth's surface, where it is partly absorbed. The heated surface radiates some energy back to space, but at infrared wavelengths, much longer than visible light. The figure shows the path of radiation. The greenhouse gases in the atmosphere transmit the incoming visible light, but stop some of the outgoing infrared, trapping it between the atmosphere and the surface. The name "greenhouse" comes from analogy with a glass greenhouse for plants. Here the visible solar radiation penetrates the glass, but some of the infrared re-emitted by the interior of the greenhouse is trapped by the glass and allows the interior air of the greenhouse to be maintained at a comfortably warm temperature. (The interior of a car in the summer is similar.) Of course a greenhouse also keeps plants warm by sheltering them from the wind, which is a different effect.

55. Statistics Finland - Statistics By Topic - Greenhouse Gases According to preliminary data calculated by Statistics Finland, greenhouse gas emissions in Finland totalled approximately 80 Mt of CO2 equivalent, http://www.stat.fi/til/khki/index_en.html

Greenhouse gases Latest release: Greenhouse gas emissions in Finland 13 per cent above Kyoto base year (12 Dec 2007) According to preliminary data calculated by Statistics Finland, greenhouse gas emissions in Finland totalled approximately 80 Mt of CO2 equivalent, which is 13 per cent more than in the base year of the Kyoto Protocol. Under the Kyoto Protocol, the base year for Finland is 1990, with the exception of so-called F-gases (HFCs, PFCs and SF6) for which the base year is 1995. In the base year, emissions in Finland totalled 71 Mt of CO2 equivalent. Next release: 18 Apr 2008 Description: Annual reporting of emissions of the greenhouse gases specified in the Kyoto Protocol to the Secretariat of the UNFCCC comprises emission calculations in a common form (CRF tables) and a related background report (National Inventory Report). Statistics Finland is the national entity responsible for the greenhouse gas inventory in Finland. Full description >>> Greenhouse gases in Finland Home Statistics ... Environment and Natural Resources Statistics Greenhouse gases Future releases Releases Reviews Tables Figures Press releases Description Quality descriptions Methodological descriptions Concepts and definitions Classifications Further information Greenhouse gases in Finland Suomeksi På svenska ... News Statistics Finland - Telephone +358 9 17 341 - Contact information Feedback

56. Scientists Gauge Greenhouse Gases Above S.F. In Warming Experiment Scientists gauge greenhouse gases above SF in warming experiment. http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/10/15/MN1DSP3PU.DTL

57. Climate Change 2001: The Scientific Basis 4.2.6.1 Laboratory data and the OH lifetime of greenhouse gases 4.2.6.2 Atmospheric measurements and modelling of photochemistry http://www.grida.no/climate/ipcc_tar/wg1/127.htm

Climate Change 2001: Working Group I: The Scientific Basis Get Javascript Other reports in this collection 4. Atmospheric Chemistry and Greenhouse Gases Contents Executive Summary 4.1 Introduction 4.1.1 Sources of Greenhouse Gases 4.1.2 Atmospheric Chemistry and Feedbacks ... References Co-ordinating Lead Authors D. Ehhalt, M. Prather Lead Authors F. Dentener, R. Derwent, E. Dlugokencky, E. Holland, I. Isaksen, J. Katima, V. Kirchhoff, P. Matson, P. Midgley, M. Wang Contributing Authors Review Editors F. Joos, M. McFarlan Table of contents Other reports in this collection

58. Science Projects - Greenhouse Effect The gases formed by the burning, such as carbon dioxide, are building up in the atmosphere. They act like greenhouse glass. The result, experts believe, http://www.energyquest.ca.gov/projects/greenhouse.html

The Earth's climate has changed many times in the past. Subtropical forests have spread from the south into more temperate (or milder, cooler climates) areas. Millions of years later, ice sheets spread from the north covering much of the northern United States, Europe and Asia with great glaciers. Today, nearly all scientists believe human beings are changing the climate. How can that be? Over the past few centuries, people have been burning more amounts of fuels such as wood, coal, oil, natural gas and gasoline. The gases formed by the burning, such as carbon dioxide, are building up in the atmosphere. They act like greenhouse glass. The result, experts believe, is that the Earth heating up and undergoing global warming . How can you show the greenhouse effect?

59. Greenhouse Gas Emissions | Climate Change | U.S. EPA Prepared annually by EPA, the national greenhouse gas inventory report presents estimates of U.S. greenhouse gas emissions and sinks for the years 1990 http://www.epa.gov/climatechange/emissions/index.html

@import 'http://www.epa.gov/epafiles/s/epa.css'; Jump to main content. Climate Change - Greenhouse Gas Emissions Contact Us Search: All EPA This Area You are here: EPA Home Climate Change Greenhouse Gas Emissions Greenhouse Gas Emissions Related Links EPA U.S. Greenhouse Gas Inventories Methane to Markets Personal Greenhouse Gas Emissions Calculator Greenhouse Gas Equivalencies Calculator ... IPCC's National Greenhouse Gas Inventories Programme UNFCCC Greenhouse Gases Database National Inventory Submissions 2006 Greenhouse Gas Emissions Overview Inventories ... 2007 Inventory of Greenhouse Gas Emissions and Sinks Prepared annually by EPA, the national greenhouse gas inventory report presents estimates of U.S. greenhouse gas emissions and sinks for the years 1990 through 2005. This report also discusses the methods and data used to calculate the emission estimates. Greenhouse Gas Overview climate change science home page Some greenhouse gases such as carbon dioxide occur naturally and are emitted to the atmosphere through natural processes and human activities. Other greenhouse gases (e.g., fluorinated gases) are created and emitted solely through human activities. The principal greenhouse gases that enter the atmosphere because of human activities are: Carbon Dioxide (CO Methane (CH : Methane is emitted during the production and transport of coal, natural gas, and oil. Methane emissions also result from livestock and other agricultural practices and by the decay of organic waste in municipal solid waste landfills.

60. Greenhouse Gas (GHG) Information greenhouse Gas (GHG) Monitoring, Accounting and Reporting encompasses the institutional, legal and procedural arrangements necessary to ensure that Canada http://www.ec.gc.ca/pdb/ghg/ghg_home_e.cfm

January 24, 2008 GHG Home National System Kyoto Protocol GHG Division FAQ's ... Home Monitoring, Accounting and Reporting on Greenhouse Gases Greenhouse Gas (GHG) Monitoring, Accounting and Reporting encompasses the institutional, legal and procedural arrangements necessary to ensure that Canada meets its United Nations Framework Convention on Climate Change (UNFCCC) and Kyoto Protocol reporting obligations, that quality inventories are prepared, and that proper documentation and archiving occurs in order to facilitate third party review and to assess compliance with UNFCCC reporting obligations and with Canada's Kyoto Protocol target. This site features a variety of information on GHGs , the greenhouse effect FAQs data tables of Canada's GHG emissions, and all the latest information and tools you need for measuring, verifying and reporting facility GHG emissions. There are two main sources of information for GHG emissions available on this website. The first is the National Inventory Report (NIR) which contains GHG emissions data at the national, provincial and sectoral levels and is submitted to the United Nations Framework Convention on Climate Change (UNFCCC) annually. This is the source to be used for all-inclusive national and provincial totals. The second source is the GHG Emissions Reporting program . The GHG emissions reporting program specifically targets facilities in Canada that emit the equivalent of 100,000 tonnes or more of Greenhouse Gases (in CO

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