EESA10H3 Chapter Notes - Chapter 1: Geosphere, Environmental Health, Endocrine Disruptor
7 Oct 2014
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Document Summary
Health, and risk: prior environmental health problems have changed dramatically in the past 25 years. The environmental crisis: for the first time, humans are altering the basic operations of the earth"s atmosphere, geosphere, and biosphere, between 1/3 and of the land surface has been transformed by human action. Carbon dioxide concentration in atmosphere has increased by 30% since industrial. More than half of all accessible surface fresh water is put to use by humanity. 1/4 of bird species are driven to extinction: declines in frog populations, declining health of frogs, birds, and thousands of other organisms may be the clearest indication of environmental threats to human health. Driving forces are population growth and industrialization: rate of industrialization is a powerful determinant of environmental transformation. Human and ecosystem health: ecosystem health; this idea recognizes that humans are participants in complex ecosystems and that their potential for health is proportional to the health function of those ecosystems.
