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Global warming

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  1. Global warming

  2. What is global warming? Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth. This is a type of greenhouse effect.

  3. Carbon Dioxide (CO2) Fossil fuels (coal, oil, natural gas) How Global Warming Works

  4. Example of the Greenhouse Effect The Sun’s energy passes through the car’s windshield. This energy (heat) is trapped inside the car and cannot pass back through the windshield, causing the inside of the car to warm up.

  5. What’s the difference between “global warming” and “climate change”?

  6. GLOBAL WARMING is the increase of the Earth’s average surface temperature due to a build-up of greenhouse gases in the atmosphere. CLIMATE CHANGE is a broader term that refers to long-term changes in climate, including average temperature and precipitation. Difference

  7. Effects of Global Warming Rising Sea Level Increased Temperature Habitat Damage and Species Affected Changes in Water Supply

  8. What’s the proof that global warming is taking place?

  9. 2004 1914 Portage Glacier • Alaska

  10. Colorado River • Arizona June 2002 Dec 2003

  11. Why is global warming happening?

  12. Burning of Fossil Fuels Pollution from coal, natural gas, and oil Pollution from coal, natural gas, and oil Pollution from coal, natural gas, and oil

  13. When did global warming start?

  14. Global Atmospheric Concentration of CO2

  15. How is global warming measured?

  16. Ice Core Data CO2 Measurements Before 1958 - Antarctica

  17. CO2 Atmospheric Measurements CO2 Measurements Since 1958 – Mauna Loa, Hawaii

  18. CO2 Concentrations Temperature (Northern Hemisphere) 1000 Years of CO2 and Global Warming Degree Celsius Increase Parts Per Million 1000 1200 1400 1600 1800 2000 1000 1200 1400 1600 1800 2000 Year Year

  19. Global Warming:Shifting Gears

  20. Billions of Metric TonsCarbon Goal: Reductions in CO2 Per Year 2007

  21. Our Goal Billions of Metric TonsCarbon Produce electricity efficiently Use electricity efficiently Vehicle efficiency Solar and Wind Power Biofuels Carbon capture and storage Gigaton Carbon Reductions in CO2 Per Year 2007

  22. What’s being done now to reduce our emissions? Wind Power Solar Power Fuel-Efficiency

  23. What can you do to help solve the problem?

  24. Simple Things To Do Turn off your computer or the TV when you’re not using it. Take shorter showers. Heating water uses energy. Keep rooms cool by closing the blinds, shades, or curtains. Turn off the lights when you leave a room. Use compact fluorescent bulbs.

  25. 500 lbs. of coal Be Bulb Smart—Use CFLs What’s the difference? Compact Fluorescent Incandescent • 1,430 lbs. CO2 pollution avoided • $30 saved

  26. Simple Things To Do Dress lightly when it’s hot instead of turning up the air conditioning. Or use a fan. Dress warmly when it’s cold instead of turning up the heat. Offer to help your parents keep the air filters on your AC and furnace clean. Walk short distances instead of asking for a ride in the car. Plant a tree. Recycle.

  27. The end

  28. Made by: • Vaibhav • Naman • Nikhil Sachdeva