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10,000 years ago:  Agricultural Revolution

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10,000 years ago:  Agricultural Revolution

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A book by Thoreau, who is a Transcendentalist, that is a reflection about simple living in natural surroundings.

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The Homestead Act was signed by President Abraham Lincoln which gave citizens or future citizens up to 160 acres of public land provided they live on it, improve it, and pay a small registration fee

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1872:  Yellowstone National Park founded 

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1872:  Yellowstone National Park founded 

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The first national park

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1905:  U.S. Forest Service founded + Gifford Pinchot

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1905:  U.S. Forest Service founded + Gifford Pinchot

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The U.S. Forest Service was founded to provide quality water and timber for the country's benefit. Gifford Pinchot served as the first Chief of the U.S. Forest Service.

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Leopold was one of the early leaders of the American wilderness movement.

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Signed into law by President Theodore Roosevelt, the Antiquities Act gave the President the ability to declare historical landmarks to be national monuments.

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1912:  U.S. National Park service founded 

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1912:  U.S. National Park service founded 

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The Dust Bowl was a period of severe dust storms that greatly damaged the ecology and agriculture of the American and Canadian prairies during the 1930s.

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a United States federal law that regulates grazing on public lands to improve rangeland conditions and regulate their use.

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Lethal smog that covered the city of London for five days that was caused by industrial pollution and high-pressure weather conditions. The smoke and fog resulted in thousands of deaths.

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1962:  Silent Spring published by Rachel Carson 

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1962:  Silent Spring published by Rachel Carson 

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1969:  Cuyahoga River in Cleveland, Ohio, caught fire

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1969:  Cuyahoga River in Cleveland, Ohio, caught fire

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an oil slick caught fire on the Cuyahoga River. Images of the fire motivated change to protect the environment.

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This legislation authorized the development of federal and state regulations to limit emissions from both industrial sources and mobile sources.

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1972: FIFRA (Federal Insecticide, Fungicide, and Rodenticide Control Act)

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1972: FIFRA (Federal Insecticide, Fungicide, and Rodenticide Control Act)

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A United States federal law that set up the basic U.S. system of pesticide regulation to protect applicators, consumers, and the environment.

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The Endangered Species Act was designed to protect imperiled species.

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The 1973 oil crisis began when the members of the Organization of Arab Petroleum Exporting Countries proclaimed an oil embargo. The embargo was targeted at nations perceived as supporting Israel during the Yom Kippur War.

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1976:  RCRA (Resource Conservation and Recovery Act)

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1976:  RCRA (Resource Conservation and Recovery Act)

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The RCRA governs the disposal of hazardous and non-hazardous solid waste.

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a U.S. federal law that regulates the discharge of pollutants into the nation's surface waters, including lakes, rivers, streams, wetlands, and coastal areas.

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1977:  Surface Mining Control and Reclamation Act

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1977:  Surface Mining Control and Reclamation Act

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A law that regulates the environmental effects of coal mining in the United States.

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Love Canal is located in upstate New York. The town was a working-class enclave with hundreds of homes and a school. The town just happened to sit atop 21,000 tons of toxic industrial waste that had been buried underground in the 1940s and '50s by a local company.

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In 1979 at Three Mile Island Nuclear power plant in Pennsylvania, a cooling malfunction caused part of the core to melt in the #2 reactor. The TMI-2 reactor was destroyed. Some radioactive gas was released a couple of days after the accident, but not enough to cause any dose above background levels to local residents.

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1980: CERCLA (Comprehensive Environmental Response, Compensation & Liability Act AKA: Superfund)

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1980: CERCLA (Comprehensive Environmental Response, Compensation & Liability Act AKA: Superfund)

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provides a Federal "Superfund" to clean up uncontrolled or abandoned hazardous-waste sites as well as accidents, spills, and other emergency releases of pollutants and contaminants into the environment

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An accident at the Union Carbide pesticide plant in Bhopal, India,  that released at least 30 tons of a highly toxic gas called methyl isocyanate, as well as a number of other poisonous gases.

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The Chernobyl disaster was caused by a nuclear accident that occurred on Saturday 26 April 1986, at the No. 4 reactor in the Chernobyl Nuclear Power Plant, near the city of Pripyat in the north of the Ukrainian SSR.

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an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.

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On the evening of March 23, 1989, Exxon Valdez left the port of Valdez, Alaska, bound for Long Beach, California, with 53 million gallons of oil onboard. The impact of the collision tore open the ship's hull, causing some 11 million gallons of crude oil to spill into the water.

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The essential tenet of the Kyoto Protocol was that industrialized nations needed to lessen the amount of their CO2 emissions. The Protocol was adopted in Kyoto, Japan in 1997, when greenhouse gases were rapidly threatening our climate, life on the earth, and the planet, itself.

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The Deepwater Horizon oil spill was an industrial disaster that began on April 20, 2010, in the Gulf of Mexico. It was considered to be the largest marine oil spill in the history of the petroleum industry.

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2011: Fukushima Daiichi Nuclear Disaster

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2011: Fukushima Daiichi Nuclear Disaster

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The Fukushima Daiichi nuclear disaster was due to a 2011 nuclear accident at the Fukushima Daiichi Nuclear Power Plant in Ōkuma. It was initiated by  by the 2011 Tōhoku earthquake and tsunami.