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April 22nd declared the first earth day
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first UN conference on the human enviorment
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Canada passed a wildlife act
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UN creates the world commission on the environment and development
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Canada enacts the arctic waters pollution prevention act
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clean air act addresses acid rain and toxic air pollution
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UN earth summit takes place in Brazil
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action plan 2000 on climate change introduced
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world summit on sustainable development
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one tone challenge is launched by the Canadian government