Read at :

dgAlert for Environment and Development

http://topics.developmentgateway.org/environment/rc/ItemDetail.do?itemId=1101648

Climate.org

http://www.climate.org/topics/agricul/index.shtml

Climate Change and Food Security

Introduction: Over the past fifty years, human ingenuity has led to technological advances in agriculture that have dramatically increased crop yields. However, despite these improvements, agriculture is still highly dependent on climate since solar radiation, temperature, and precipitation are the main drivers of crop growth. Since the industrial revolution, humans have been changing the global climate by emitting high amounts of greenhouse gases into the atmosphere, potentially resulting in higher global temperatures, changed hydrological regimes, and increased climatic variability. Climate change over the next century may have significant effects on food supply, i.e., how much food is produced, as well as food security, i.e. how much food is available to people. How much, where, and when food supply and security will be affected by climate change are questions many scientists and policy-makers are examining.

Go to :

http://www.climate.org/topics/agricul/index.shtml

and read more about :

Global Warming and Food Security

Impacts of Climate Change on Food Production and Supply

Impacts of Climate Change on Food Security

Mitigation and Adaptation

Reducing Carbon Emissions

Adaptation to Global Warming

Conclusion

In conclusion, global warming may result in detrimental effects on food supply and security, especially in developing countries.  Even if developing countries adapt to climate change, they will not be able to completely avoid the problems associated with climate change.  Furthermore, these harmful outcomes of climate change in developing countries and potentially positive outcomes in developed countries will probably increase the gap in wealth, access to food, and health between rich and poor countries.  This will affect the worldwide economy as emerging trade-partners are lost, hunger increases, and refugees leave regions harmed by global warming in search of food and resources.