1. population increases
   1. demand for
      1. agricultural land
         1. cattle farming
         2. cash crops
2. intensive farming
   1. destruction
      1. forest biome
      2. by 2050
         1. brazil will lose 40% of forest
3. animals
   1. habitats destroyed
4. soil
   1. exhaustion
   2. chemicals
      1. run into rivers
      2. threaten
         1. plants
         2. fish