Lecture # 25-Agriculture and the Environment, World Food Problems P238-249

1. Present agricultural practices
   1. Very successful
   2. Deleterious to the environment
2. Problems due to our agricultural practices
   1. Declining genetic diversity of crop plants and animals
   2. Soil Erosion
   3. Salinization
   4. Desertification
   5. Excessive use of commercial fertilizer
   6. Excessive use of pesticides
3. Sustainable Agriculture
   1. Integrates
      1. Environmental health
      2. Economic profitability
      3. Social and economic equity
4. The world food problem
   1. Human nutritional requirements
   2. Carrying capacity
   3. Human population projections
   4. Food problems
      1. Quantity
      2. Poverty
      3. Dependence on too few crops
      4. Declining genetic diversity
   5. Solutions
      1. Raise the standard of living in developing countries
      2. Improve existing crops-develop new crops
      3. Eat lower on the food chain