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Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution.
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Swedish people are allowed to enjoy their mornings in 1822 after in 1746, a royal edict was issued against coffee and tea due to "the misuse and excesses of tea and coffee drinking". Later, coffee was banned completely however despite the ban, consumption continued.
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The Stockton and Darlington Railway opens, becoming the first public railroad
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The Second French Revolution begins to overthrow King Charles the Tenth
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The term ecology is coined in German as Oekologie by Ernst Heinrich Philipp August Haeckel
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The term acid rain is coined by Robert Angus Smith in the book Air and Rain
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The term smog is coined by Henry Antoine Des Voeux in a London meeting to express concern over air pollution
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The passenger pigeon goes extinct
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First Earth Day – April 22. Millions of people gather in the United States for the first Earth Day. US Environmental Protection Agency established
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Montreal Protocol on substances that deplete the ozone layer entered into force
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The Kyoto Protocol was negotiated in Kyoto, Japan in December. Countries commit to reducing their emissions of carbon dioxide
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U.S. announces it will cease participation in the Paris Agreement on climate change mitigation
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2021 — U.S. announces it will rejoin the Paris Agreement on climate change mitigation