challenges for the future

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…