HLSC 1F90 Lecture Notes - Lecture 23: Healthy Planet, Landfill, Nitrogen Dioxide
16 Apr 2017
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Environmental health is fundamental to human health: humans can become ill, or die from; Ingesting food, water or dust that is polluted. The world population is rapidly expanding this expansion is putting huge stress on the environment: 1 to 2 billion took 123 years, 6 to 7 billion took 12 years, 160 births/min. Greatest population growth in less-developed regions: 1950: 32% of population lived in more-developed regions of the world (example: europe, north. America: 2000: 20% of the global population, 2050: expected to be 13% How many people the world can support is limited by: sufficient supply and distribution of food, available land and water, sufficient accessible energy that doesn"t damage environment, minimum acceptable standard of living. Water quality and water pollution: please read all sections of text, water contamination and treatment, water shortages (how does canada fare?, sewage (how is it treated?, protecting the water supply (toxins down the drain)
