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In 1956, mercury was dumped into water from the Minamata Kumamoto Prefecture. Mercury is highly toxic and was absorbed by fish and shellfish. Once Japanese people started to consume the contaminated food, they were met with severe mercury poisoning, resulting in the Minamata disease.
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In 1962, marine biologist, writer and conservationist, Rachel Carson wrote the book Silent Spring. The content consists of the lasting negative effects humans have on the environment. Its reception was incredibly popular and good, as people such as David Attenborough.
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In 1972, in Stockholm, Sweden, hosted a conference to talk about economic growth and air pollution.
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The Endangered Species Act is a law that is designed to protect and conserve species. It was made effective in December 27, 1973 by President Nixon.
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Adopted in 1987, the Montreal protocol was the agreement that regulates production and consumption of over 100 man made chemicals to protect the ozone layer.
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In 1984, a gas leak in Bhopal occurred, which breezed through 500,000 people in small towns. It killed 3,787, but it is claimed over 16,000 died. The chemical release was of methyl isocyanate, which is used in the production of rubber.
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The Chernobyl meltdown was an accident in Ukraine where in a reactor exploded radiation everywhere when it was faulty.
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The Kyoto protocol was a treaty, adopted in 1992, where they agreed to reduce greenhouse gasses.
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On May 24th, 2006, the documentary An Inconvenient Truth was released, educating its audience about global warming.
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