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1939 BCE
american ww2
1939 to 1945 -
1867 BCE
russian sells land to american
March 30, 1867 russian alaska to american -
1861 BCE
american civil war
1861 1865 -
1765 BCE
american revolution
american revolution -
Benjamin Franklin attempts to regulate waste disposal and water pollution
Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution. -
american and mexico war
we won 1848 -
Henry David Thoreau publishes Walden
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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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1905 — The term smog is coined by Henry Antoine Des Voeux in a London meeting to express concern over air pollution
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ameican ww1
1914 to 1918 -
US Congress created the National Park Service
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cold war
1950 to 1991 -
north korea and south korea war 1950
U.s.s.r back north and ameriacn back south -
cuba
the u.s.s.r gave cuba nukes -
Rachel Carson publishes Silent Spring
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The Apollo 8 picture of Earthrise
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moon landing
we won the space -
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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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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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