Global Warming

    Cards (7)

    • 4 Greenhouse Gases:
      Carbon Dioxide
      Methane
      Nitrous Oxide
      CFC's (Chlorofluorocarbons)
    • [Global Warming]
      • The Heat Energy that ISN'T absorbed by the Earth Surface, is REFLECTED back into the Atmosphere
      • SOME of it is reflected back into Space, but MOST of it hits the Greenhouse Gases in our Atmosphere, which ABSORB all of the energy
      ---> After a while, these Greenhouse Gases RE-EMIT this energy in random directions as Heat, WARMING up the Earth in the process
      A) Absorbed
    • By increasing the amounts of Greenhouse Gases (like CO2) in the Atmosphere, we're increasing the levels of Gases in the Atmosphere that can Absorb and Re-emit Heat, contributing to MORE Global Warming
      A) Sun
      B) Methane
      C) heat
    • [Contribution to Global Warming]
      CARBON DIOXIDE (CO2):
      • Human Activity, like Car Exhausts and Burning Fossil Fuels, release LARGE amounts of Carbon Dioxide into the atmosphere
      • Cutting down large areas of Forest (Deforestation) for Timber and Farming, INCREASES the level of CO2 in the atmosphere, contributing to Global Warming
    • [Contribution to Global Warming]
      METHANE (CH4):
      • Methane is produced naturally from various sources, like Rotting Plants in Marshlands
      • Two MAN-MADE sources of Methane are: Rice Growing and Cattle Rearing (Cows farting and burping)
      A) Cattle Rearing
    • [Contribution to Global Warming]
      NITROUS OXIDE (N2O):
      • Nitrous Oxide is produced naturally by BACTERIA in the Soil, and the Ocean
      ---> A LOT MORE is released from soils after FERTILISERS are used
      • Nitrous Oxide is also released from Vehicle Engines and Industry
      A) Bacteria
    • [Contribution to Global Warming]
      CFC'S:
      • CFC's are MAN-MADE chemicals that were once used in Aerosol Sprays and Fridges
      • They damage the Earth's OZONE LAYER that prevents any UV Radiation from reaching the Earth
      • SOME CFC's remain and get released, like Leaks from OLD FRIDGES
      A) fridges