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William Penn
Pennsylvania colony governor William Penn ordered colonists to conserve one tree for every five cut down. -
Burton Act
Congress passed the Burton Act, which preserved Niagara Falls from hydroelectric power facilities. -
Heavy Smog
Heavy smog conditions forced city officials to close schools in Los Angeles for most of the month of October. -
Antarctic Treaty
The Antarctic Treaty protected Antarctica from the dumping of nuclear waste. -
Silent Spring
Rachel Carson published Silent Spring, which warned about the dangers of pesticides, especially DDT. -
Clean Air Act
Congress passed the first Clean Air Act, which regulated air pollution and emissions. -
First Earth Day
The first Earth Day was celebrated by 20 million people across the country. Today, Earth Day is celebrated annually around the world. -
Safe Drinking Water Act
Congress passed the Safe Drinking Water Act to be administered by the EPA, protecting Americans from contaminated drinking water. -
Global Warming
NASA warned the government about Global Warming. -
Live Earth concerts
Live Earth concerts around the world featured Madonna, the Black Eyed Peas, the Red Hot Chili Peppers, Metallica, and the Beastie Boys, to raise awareness of climate change.
