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Explanation by raisra a global warming

Explanation by raisra a global warming






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  • Scientists agree that the burning of fossil fuels is causing global warming. Since these fuels are burned for energy, and everyone uses energy, everyone can help stop global warming just by using less energy or energy from renewable sources!

Explanation by raisra a global warming Explanation by raisra a global warming Presentation Transcript

  • Tugas Bahasa Inggris
    • Raisra Primira
    • XII IPA 2
    • 32
  • What is global warming?
  • How Global Warming Works Fossil fuels (coal, oil, natural gas) Carbon Dioxide (CO 2 )
  • 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. Example of the Greenhouse Effect
    • What’s the difference between “global warming” and “climate change”?
  • Difference
    • is the increase of the Earth’s average surface temperature due to a build-up of greenhouse gases in the atmosphere.
    • is a broader term that refers to long-term changes in climate, including average temperature and precipitation.
  • Effects of Global Warming Increased Temperature Habitat Damage and Species Affected Changes in Water Supply Rising Sea Level
  • What’s the proof that global warming is taking place?
  • Portage Glacier
    • Alaska
    Photos: NOAA Photo Collection and Gary Braasch – WorldViewOfGlobalWarming.org 1914 2004
  • Colorado River
    • Arizona
    June 2002 Dec 2003
  • Why is global warming happening?
  • 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
  • When did global warming start?
  • Global Atmospheric Concentration of CO 2
  • How is global warming measured?
  • Ice Core Data CO 2 Measurements Before 1958 - Antarctica
  • CO 2 Atmospheric Measurements CO 2 Measurements Since 1958 – Mauna Loa, Hawaii
  • 1000 Years of CO 2 and Global Warming Degree Celsius Increase Parts Per Million Year Year 1000 1200 1400 1600 1800 2000 1000 1200 1400 1600 1800 2000 Temperature (Northern Hemisphere) CO 2 Concentrations
  • Global Warming: Shifting Gears
  • 2007 Goal: Reductions in CO 2 Per Year Billions of Metric Tons Carbon
  • 2007 Reductions in CO 2 Per Year Gigaton Carbon Produce electricity efficiently Use electricity efficiently Vehicle efficiency Solar and Wind Power Biofuels Carbon capture and storage Billions of Metric Tons Carbon Our Goal
  • What’s being done now to reduce our emissions? Solar Power Wind Power Fuel-Efficiency
  • We can stop global warming!
  • What can you do to help solve the problem?
  • 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.
  • Be Bulb Smart—Use CFLs Incandescent Compact Fluorescent What’s the difference?
    • 1,430 lbs. CO 2 pollution avoided
    • $30 saved
    500 lbs. of coal
  • 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.
  • © National Wildlife Federation, 2007