EESA01H3 Lecture : THE SCIENCE BEHIND THE STORIES W/MYENVIRONMENTPLACE Chapter 1
17 Dec 2010
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Document Summary
Our environment is more than just our surroundings: Environment canada: to preserve and enhance the quality of canada"s natural environment, conserve our renewable resources, and protect our waters. Environmental science explores interactions b/w humans and the physical and biological world: We depend on environment for air, water, food, shelter, and everything else essential for living. Environmental science: study of how the natural world works, how our environment affects us, and how we affect our environment. Natural resources: various substances and energy sources we need to survive. Human population growth has shaped our resource use: Four significant periods of societal change triggered increases in pop. size: paleolithic (or old stone age) period: happened approx. Green revolution have allowed more people to live longer. Ipat model where i=p*a*t: i is impact, p is population, a is affluence (level of consumption), t is technology. Carrying capacity and the tragedy of the commons :
