HIS 2129 Lecture Notes - Lecture 10: Syncrude, Sustainable Forest Management, Tree Farm
15 Dec 2019
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Trudel chapter 12 modern technology and the ecological threshold. The rise of an environmental sensibility: history of the environmental movement is rooted in the belief in the bible that the humans are the stewards of the earth. In chemistry you got molecules: radio waves made radios wireless, germ theory, x-rays and dna. Pesticides: historical context: with chemical advancements in warfare in wwi it was easy to see the eradication of unwanted species (led to pesticides, the farming practiced by european settlers in na was vulnerable to weeds. Pesticides: the road to synthetics: 1945 selective herbicide 2,4-d introduced; cheap, easily applied, selective to weeds only, also led to insecticides and fungicides for unwanted bugs and fungi. Invasive species caused massive damage to crops in na, and by 1945. Ddt(dichlorodiphenyltrichloroethane) was introduced as the new insecticide, used often after wwii to rid of moquitoes and mice for malaria and typhus: contributing factors to the post-war over-reliance on chemical means include:
