challenges for the future

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increasing food and water insecurity

  • less food produced where there is less rainfall and desertification eg in the Sahel and parts of Asia. Less exports would have effects globally.
  • more frequent hurricanes could devastate crop yields eg hurricane Katrina caused $1billion of these losses
  • productive land lost to sea level rise eg the fertile alluvial soils

these problems may be compounded by human factors like population growth and rising consumption in NICs - demand could outstrip supply and lead to food riots as more people adopt a protein rich diet

choices

global warming must be limited to less than 2 degrees above pre industrial levels to avoid irrevesible changes (a tipping point)

some people are still not taking…

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