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Section 4 Major Greenhouse Gases

Section 4 Major Greenhouse Gases. http://weathersavvy.com/Q-Climate_Greenhouse_Gases.html. Learning Targets:.  I can explain factors that cause the dynamic balance in the atmosphere to change.

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Section 4 Major Greenhouse Gases

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  1. Section 4 • Major Greenhouse Gases http://weathersavvy.com/Q-Climate_Greenhouse_Gases.html

  2. Learning Targets:  I can explain factors that cause the dynamic balance in the atmosphere to change.  I can model and explain the relationships and energy flow existing in various Earth systems (atmosphere) http://4nutshells.com/wp-content/uploads/2010/10/Earths-atmosphere.jpg

  3. http://www.life-size-media.com/blog/wp-content/uploads/2012/06/cc-cartoon.jpghttp://www.life-size-media.com/blog/wp-content/uploads/2012/06/cc-cartoon.jpg

  4. 41. What GHG’s are naturally present in the atmosphere? water vapor, ozone, carbon dioxide, methane, and nitrous oxide

  5. Total Emissions in 2011 = 6,702 Million Metric Tons of CO2 equivalent Gases that trap heat in the atmosphere are called greenhouse http://www.epa.gov/climatechange/ghgemissions/gases.html

  6. U.S. Greenhouse Gas Emissions in 2011 Total Emissions in 2011 = 6,702 Million Metric Tons of CO2 equivalent • * Land Use, Land-Use Change, and Forestry in the United States is a net sink and offsets approximately 14% of these greenhouse gas emissions.All emission estimates from the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2011 • Greenhouse gases trap heat and make the planet warmer. http://www.epa.gov/climatechange/ghgemissions/sources.html

  7. Some GHG’s are synthetic chemicals that • are emitted only as a result of humanactivity. 43. Anthropogenic means human. http://www.bing.com/images/search?q=human+activities&qpvt=human+activities&FORM=IGRE#view=detail&id=00A0C4D001017BD15133D6856CC47313BA75FC61&selectedIndex=13

  8. Click on link to see slide show of 10 ten sources of greenhouse gases http://knowledge.allianz.com/environment/climate_change/?651/ten-sources-of-greenhouse-gases-gallery Click on link below to see GHG emissions for Hardin County http://ghgdata.epa.gov/ghgp/main.do

  9. http://www1.eere.energy.gov/femp/program/greenhousegases_basics.htmlhttp://www1.eere.energy.gov/femp/program/greenhousegases_basics.html

  10. http://yubanet.com/uploads/3/greenhousegases.jpg

  11. Complete the table below for these common • Greenhouse Gases, GHGs. Carbon dioxide • Formula CO2 • Sources - combustion of carbon-based fuels • - the decay of biomass • Natural Sources - volcanic eruptions, • - respirationof organic matter in natural • ecosystems • - natural fires • - exchangeof dissolved CO2with the oceans • Human sources (a) fossil fuel combustion • (b) deforestation and land use changes (such as • converting agricultural land or forests to • urban development)

  12. http://www.arb.ca.gov/cc/inventory/inventory.htm http://www.chemistryexplained.com/Di-Fa/Explosions.html

  13. http://www.inkcinct.com.au/web-pages/cartoons/past/2008/2008-404--greenhouse-gas-reduction-policy.gifhttp://www.inkcinct.com.au/web-pages/cartoons/past/2008/2008-404--greenhouse-gas-reduction-policy.gif

  14. Methane Formula CH4 Sources - anaerobicdecay of organic material in landfills, wetlands, and rice fields - enteric fermentation in the digestive tracts of ruminantanimals such as cattle, goats, and sheep - manure management - wastewater treatment - fossil fuel combustion - leaks from natural gas transportation and distribution systems - abandoned coal mines.

  15. http://www.treehugger.com/corporate-responsibility/waste-management-investing-us400-million-in-methane-to-electricity-projects.htmlhttp://www.treehugger.com/corporate-responsibility/waste-management-investing-us400-million-in-methane-to-electricity-projects.html http://www.arb.ca.gov/cc/inventory/data/data.htm http://knowledge.allianz.com/environment/climate_change/?651/ten-sources-of-greenhouse-gases-gallery

  16. Nitrous Oxide • Formula N2O • Sources - fertilizer use • - animal waste management • - fossil fuel combustion • - industrial activities.

  17. http://www.whatsyourimpact.eu.org/n2o-sources.php http://www.arb.ca.gov/cc/inventory/1990level/1990level.htm http://www.whatsyourimpact.eu.org/n2o-sources.php

  18. Hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs) are synthetic chemicals that are used in a variety of industrial production processes Sources - semiconductor manufacturing -PFCs - by-product of aluminum smelting - substitutes for ozone-depleting chlorofluorocarbons (CFCs) in refrigeration and foam-blowing for insulation CFCs are being phased out under the 1987 Montreal Protocol on Substances that Deplete the Ozone Layer.

  19. http://www.unep.org/ccac/ShortLivedClimatePollutants/tabid/101650/Default.aspxhttp://www.unep.org/ccac/ShortLivedClimatePollutants/tabid/101650/Default.aspx

  20. What happens when atmospheric GHG concentrations increase? Earth temporarily traps infrared radiation more efficiently, so the natural radiative balance is disturbed until its surface temperature rises to restore equilibrium between incoming and outgoing radiation. http://gov.cbia.com/images/sized/images/blog/NIA-EnviroLand-21-572x368.jpg

  21. Importance of human-produced greenhouse gases . Courtesy Marian Koshland Science Museum of the National Academy of Sciences http://www.koshland-science-museum.org

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