CO2 and methane as greenhouse gases

• name 3 greenhouse gases

  water vapour, carbon dioxide, methane
• what is the link between greenhouse gases and the temperature of the earth

  greenhouse gases maintain temperatures on the earth high enough to support life
• name human activities which increase the amount of carbon dioxide in the atmosphere

  burning/ combustion of fossil fuels, deforestation
• name human activities that increase the amount of methane in the atmosphere

  farming of livestock; landfill sites
• what do many scientists believe about human activities and the temperature of the earths atmosphere

  Human activities will cause the temperature of the earths atmosphere to increase at the surface resulting in climate change
• why are there issues surrounding modelling human impact on climate change

  • difficulty to model these changes
  • simplified models are generated
  • leading to speculation and opinions presented in the media that may be based on only part of the evidence and be biased