- Conditions which are requirements for crop growth are intrinsically liked to the climate and the environment; changes are likely to impact on crop growth.
- Uncertainty exists about the predicted impacts of climatic change, although some positive and negative impacts are expected.
- The scale of impact depends on the degree to which climate changes.
- Some changes in crop production and fish migration have already been observed.
- Without mitigation or adaption, the impacts on food production are overall expected to be negative, although regional differences will occur.
- Poorer countries will be affected most because:
- Climate change will affect those regions most severely
- Poor people and poor nations are less able to adapt to changes in climate (e.g. by investing in the necessary infrastructure or training) or to afford higher food prices, or cope with price and supply volatility.