The Greenhouse Effect

• what is the greenhouse effect?

  the natural process where gases and clouds heat up the atmosphere and earth by absorbing infrared radiation
• what has human activity affected the greenhouse effect?

  it altered the natural process
• what are some examples of greenhouse gases?

  carbon dioxide, water vapour, methane, ozone, & nitrous oxide
• water vapour

  two thirds of earth's natural greenhouse effect
• methane

  20x stronger than CO2 as a greenhouse gas
• nitrous oxide

  200x stronger than CO2 as a greenhouse gas