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Philadelphia Attempts Waste Regulation
Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution. -
Henry David Thoreau Publishes Walden
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Term Ecology Coined as Oekologie in German
The term ecology is coined in German as Oekologie by Ernst Heinrich Philipp August Haeckel -
Robert Angus Smith Coins Term Acid Rain
The term acid rain is coined by Robert Angus Smith in the book Air and Rain. -
Term Smog is Coined in London Meeting
The term smog is coined by Henry Antoine Des Voeux in a London meeting to express concern over air pollution. -
U.S. Congress creates NPS
US Congress created the National Park Service. -
Yuri Gagarin Spaceflight
Yuri gagarin, an astronaut for the Soviet Union, becomes the first human in space, completing one orbit around the earth on the Vostok 1 spacecraft. -
Rachel Carson Publishes Silent Spring
Rachel Carson publishes Silent Spring. -
Apollo 8 Captures Earthrise Photo
The Apollo 8 picture of Earthrise. -
Moon Landing
Nasa's Apollo 11 mission successfully landed the first astronauts Neil Armstrong, Buzz Aldrin, and Micheal Collins on the moon. -
First Earth Day
April 22. Millions of people gather in the United States for the first Earth Day. US Environmental Protection Agency established. -
Montreal Protocol
Montreal Protocol on substances that deplete the ozone layer entered into force. -
Constructing the International Space Station Begins
The ISS is a microgravity laboratory which is part of a collaboration between many nations, and is still in orbit. -
Kyoto Protocol
The Kyoto Protocol was negotiated in Kyoto, Japan in December. Countries commit to reduce their emissions of carbon dioxide. -
Hubble Space Telescope Launch
The Hubble Space Telescope is deployed into orbit, allowing us to see the universe better, and further our understanding of it. -
U.S. rejects the Kyoto Protocol.
U.S. rejects the Kyoto Protocol. -
Mars Rover Spirit Landing
NASA's spirit rover lands on Mars and begins its mission to search for past water activity, and explore the martian surface. -
New Horizons Pluto Flyby
NASA's New Horizons spacecraft passes by Pluto providing detailed images of the planet and important data. -
U.S. Ceases Participation in Paris Agreement
U.S. announces it will cease participation in the Paris Agreement on climate change mitigation. -
SpaceX Falcon Heavy Maiden Flight
SpaceX launched the Falcon Heavy, the most powerful rocket in the world at the time, on a path to orbit the sun. -
Artemis Program Moon Landing Plans
NASA's Artemis program aims to return humans to the Moon, including the first woman, with the goal being to establish a sustainable presence. -
U.S. Rejoins Paris Agreement
U.S. announces it will rejoin the Paris Agreement on climate change mitigation -
Perseverance Rove Landing on Mars
Nasa's Perseverance Rover lands on Mars and begins its mission to search for evidence of past life. -
James Webb Space Telescope Launch
The James Webb Telescope is launched to observe the universe using infrared wavelengths, which offers important insights to cosmic phenomena.