PUB2 105 Lecture Notes - Lecture 2: Homeopathy, Richard Wrangham, Vandana Shiva

• School: McGill University
• Department: Public Law 2
• Course: PUB2 105
• Professor: Francois Creveau

Document Summary

One specific reaction - photosynthesis: without there wouldn"t be life. Plants take up co2 and take up water produce o and all chemicals make up plant. We live on plants, that"s what we eat. No food to eat, thank a farmer!! Not many farmers today, 70% of world 50 years ago involved, now 2% of population supply all the food for us. Population grew, need for more food, convention agriculture at that time not able to fulfill needs. Today technology for massive amount of foods - modern fertilizers, pesticides, technique can produce many fruits. Small amount of chemical not enough to harm us. Genetic engineering - end to tech without looking at risk:benefit. Population increases, can"t produce enough food to feed everyone. Organic = natural means to control insects (without pesticides), use natural fertilizer (manure) Natural techniques can be done on small scale but difficult for larger.