Effects of climate change

Crop yield reduction riskMet Office, 2013


  • Crop yields are expected to decrease for all major world crops.
  • Agricultural land on the edge of deserts becomes unusable, through the process of desertification.
  • Crops could be wiped out in low-lying areas that suffer from flooding. With less crops available on the world market, prices are likely to increase.
  • The growing season in some areas will increase. This is a benefit to places such as the UK as more crops could be grown.

Sea level changes

  • Coastal land is at risk, especially land on deltas.
  • Sea defences are under more stress.
  • Low-lying land is threatened so the lives of 80 million people across the globe are threatened.

Water and ice

  • More mass movement can occur as glaciers melt.
  • Communities that use the meltwater from glaciers may see this supply decrease. This is especially the case in Asia.
  • Economies that rely on skiing as a form of income may suffer as the skiing season is reduced or disappears through lack of snow.
  • Locations suffering from water stress will increase in number.
  • Less fresh water will be available in coastal areas as it will mix with sea water, which is salty.


  • People will migrate from areas suffering drought. Any that remain will be in danger of dying from starvation and lack of water.
  • 17 million people in Bangladesh alone will be threatened by flooding.
  • As the world population increases, more people will be living in cities located on the coast. More people will be affected by coastal flooding as a result.
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