evidence for human climate change

• declining artic ice

  • when temperature rises ice caps melt
• sea level rise


  warmer temperatures cause glaciers to melt causing sea levels to rise
• thermal expansion 


  water in the ocean expands as it gets warmer
• global temperature rise


  temperatures have increased by 1 degrees since 1880
• extreme weather events 


  • there has been a higher frequency of heat waves
  • high rainfall