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Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution.
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Henry David Thoreau publishes Walden
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It was fought between the Union and the Confederacy, -
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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First world war -
US Congress created the National Park Service
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Second world war -
was a conflict in Vietnam, Laos, and Cambodia -
President J.F.K was shot and killed -
Rachel Carson publishes Silent Spring
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The Apollo 8 picture of Earthrise
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M.L.K was shot and killed on his balcony -
The very first moon landing -
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 reduce their emissions of carbon dioxide
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U.S. rejects the Kyoto Protocol
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The twin towers were attacked by terrorists. Two planes crashed into the towers -
Hurricane Katrina was a destructive Category 5 Atlantic hurricane that caused 1,392 fatalities -
The Boston Marathon bombing was a domestic terrorist attack -
U.S. announces it will cease participation in the Paris Agreement on climate change mitigation
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U.S. announces it will rejoin the Paris Agreement on climate change mitigation