Global Warming

• Which two main greenhouse gases trap heat in the atmosphere?

  • Carbon dioxide
  • Methane
• The temperature of the Earth is a balance between which two factors?

  • The energy it absorbs from the Sun
  • The energy it radiates back into space
• Gases in the atmosphere act as an insulating layer, absorbing heat which would normally be radiated into space
• How do higher temperatures affect sea level?

  • Melt ice
  • Cause seawater to expand
  • Leads to flooding
• How would the distribution of species that live in warm temperatures change during global warming?

  They would become widely distributed
• How would the distribution of species that live in cold temperatures change during global warming?

  They would have a smaller range of habitat
• How would global warming affect migration patterns?

  Cause animals to migrate further north as northern places become warmer
• How would biodiversity be affected by global warming?

  It would be reduced as species go extinct