APS111H1 Lecture Notes - Lecture 11: Ozone Depletion, Montreal Protocol, Unintended Consequences
17 Nov 2016
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The consequences to human populations of any public or private actions that alter the ways in which people: Designs can affect society by changing social conditions. Loss of habitat; loss of wildlife for hunting; expand hunting area or shop for food; shopping requires money, so need to work; change to culture of indigenous society. Person to person communication regardless of location. In developing countries, availability of cell phones has allowed people to forego building land-line telephone infrastructure. Watchmakers out of work; cameras no longer necessary = economic impact. Another example of a design with unintended consequences for society. Invented in 1928 by thomas midgley, a mechanical engineer. 1974: discovery that the ozone layer was being depleted by cfcs. 1985: ozone hole observed over the antarctic pole. 1987: montreal protocol on substance that deplete the ozone layer was adopted; alternatives to cfcs identified. The living things that are active in the environment. Reduce pressure on first responders and health care system.
