History of Ecology Our Significant Past Our Common Future.

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Presentation transcript:

History of Ecology Our Significant Past Our Common Future

Our Past Hunting and Gathering Agriculture  Began 10,000 years ago Industrial Revolution  Mid 1700s

Industrial Revolution

The Industrial Revolution Shift in energy usage from humans and animals to fossil fuels Increased ability to transform the environment Increased energy use Increased waste Increased globalization Increased population

Short History of Environmental Philosophy 1800s  Begin to see resource depletion as organisms go extinct and become threatened as forests are cut down, prairies turned to crop land: –Henry David Thoreau - writer / naturalist –John Muir - Sierra Club / conservationist –Theodore Roosevelt-conservationist/ president

Early 1900s Begin to see disastrous effects of over farming and clear cutting land –Dust bowl

Post World War !! Introduction of plastics, pesticides, inorganic fertilizer –DDT –PCBS –LEAD IN GASOLINE Automobiles Electricity New Inventions

Age of Conservation Many scientists recognize problems. Call for CONSERVATION Protecting land Pollution not an issue quite yet. Also Leopold Humboldt Odum

Troubles Begin-1960s People take notice Many people begin to notice problems with environment Rachel Carson – missing birds; “Silent Spring” Lois Gibbs - Cancer and birth defects - Love Canal Green Peace, Sierra Club, Earth First, Wilderness society!!

Cuyahoga River Catches fire 1969

1962 Silent Spring fear over DDT

Spraying DDT while people played

Lois Gibb and Love Canal

Government Organizations

Problems to Solve Minimizing waste including pollution –Water, air and land pollution Using resources wisely Over population -Energy consumption and usage

Examples of Problems and Solutions 1987 Montreal Protocol  Agreement to stop using CFCs (Chlorofluorocarbons). –Destroy ozone IPCC  International Panel of Climate Change Kyoto Protocol  Agreement to reduce green house gasses.

OVERALL GOAL!! Live today so as not to compromise the future  everything in moderation SUSTAINABILITY IS LIVING TODAY SO AS NOT TO COMPROMISE THE FUTURE

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