Sometimes fish is thrown back after withdrawing the hooks, fish may then die of the inability to eat, or microbial or fungal infections. A quatic and plant life are destroyed by acid rain that result from ammonia in animal waste and agricultural fertilisers. Livestock farming uses limited resources inefficiently . Millions of people suffer from hunger and thirst in the developing world while grain and water are used on rearing animals to be slaughtered for food in the developed world. Millions of hectares of life sustaining rain forest are destroyed each year to create grazing pasture putting at risk animal species and indigenous human populations.
Intensive grazing causes soil erosion and nutrient depletion.
Over fishing has decimated fish populations to the point of near extinction of many species. Dolphins and whales are killed by drift nets while massive amounts of dead fish are thrown back into the sea or used as pig and sheep feed.