• Glaciers and ice sheets are melting.
  • This can be seen clearly in photographs.
  • Average global temperature has been rising since the end of the ice ages.
  • The largest temperature rise has been in the past two decades.
  • 17 of the 18 hottest years on record have all occurred since 1998!
  • This temperature rise is what is usually meant by global warming.
  • Do you know why?
  • Use the resource below to answer the questions that follow.
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