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Conserving trees
Pennsylvania colony governor William Penn ordered colonists to conserve one tree for every five cut down. -
national park services
Congress established the National Park Service. Today there are approximately 400 national parks across America, comprising approximately 4% of the entire U.S., or 84.6 billion acres of preserved land. -
Bald eagle
congress passed the bald eagle preservation to prevent the extinction of the national symbol -
Everglades national park
Presdient truman established everglades national park. -
Heavy smog in LA
Heavy smog conditions forced city officials to close school in Los Angeles for most of the month of October. -
Blue marble
NASA released the “Blue Marble” photo of earth from space, giving Americans a first ‘outside’ look at their planet. The photo helped raise awareness of environmental issues. -
Frist earth day
The first Earth Day was celebrated by 20 million people across the country. Earth Day was first organized by Gaylord Nelson, a former Wisconsin senator, and Denis Hayes, a Harvard graduate student. Today, Earth Day is celebrated annually around the world. -
Endanger species act
Congress passed a law to protect what is known as endangered species from extinction -
Wrning of global warming
NASA warned Congress of the effects of global warming. -
Concerts raise awareness of climate change
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.
