Margaret Mead Speaks at First Earth Day (0:42)
On April 22, 1970, noted anthropologist and outspoken environmentalist Margaret Mead inaugurates the first Earth Day, an event to increase public awareness of the world's environmental problems.
Speeches & Audio (1)
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Margaret Mead Speaks at First Earth Day
Margaret Mead Speaks at First Earth DayAudio Clip (0:42)
Audio Clip (0:42)
On April 22, 1970, noted anthropologist and outspoken environmentalist Margaret Mead inaugurates the first Earth Day, an event to increase public awareness of the world's environmental problems.
Videos (13)
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Saving the Wetlands
Saving the WetlandsVideo Clip (3:01)
Video Clip (3:01)
Restoring the U.S. wetlands can help protect us from future catastrophic floods.
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Wind Farms
Wind FarmsVideo Clip (3:14)
Video Clip (3:14)
Wind power is there for the taking. See how engineers harvest this abundant source of energy for the good of our planet.
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Global Warming
Global WarmingVideo Clip (2:59)
Video Clip (2:59)
How the Earth was Made shows us how global warming has changed the face of the Earth forever.
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Farms Harvest Wind For Energy
Farms Harvest Wind For EnergyVideo Clip (4:28)
Video Clip (4:28)
Just west of Palm Springs California stands one of the most productive farms in the country, a wind farm with its machines being some of the biggest in the world. Discover how they work in this Modern Marvels video.
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Wind Turbines
Wind TurbinesVideo Clip (3:36)
Video Clip (3:36)
The wind turbines in Palm Springs, California, will continue powering the city for some time after humans are gone, but the wind that powers them may actually be what also leads to their destruction.
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Green Algae
Green AlgaeVideo Clip (3:05)
Video Clip (3:05)
Algae may be the key to a greener environment.
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Light Energy: A Bright Future
Light Energy: A Bright FutureVideo Clip (1:58)
Video Clip (1:58)
Solar energy has a bright future. See how engineers harness this clean source of power that helps renew our planet.
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Air Power
Air PowerVideo Clip (1:39)
Video Clip (1:39)
Wind energy may soon become the most cost-effective source of electricity in the United States. See how engineers harness the power.
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Salt Marsh Oil Spill
Salt Marsh Oil SpillVideo Clip (3:34)
Video Clip (3:34)
Woods Hole scientist Chris Reddy explains how an oil spill can have a lasting effect on the marine ecosystem.
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Global Warming: Looking for Proof
Global Warming: Looking for ProofVideo Clip (2:42)
Video Clip (2:42)
Researchers investigate Kilimanjaro and the Andes looking for evidence of Global Warming.
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Al Gore Discusses Global Warming
Al Gore Discusses Global WarmingVideo Clip (2:00)
Video Clip (2:00)
In this History Uncut video clip, watch actual video footage of Al Gore in 1997 as he presents a speech on global warming and climate change.
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Al Gore on Climate Change
Al Gore on Climate ChangeVideo Clip (4:22)
Video Clip (4:22)
In this History Uncut video clip, watch actual video footage of Al Gore in 1997 as he presents a speech on global warming and climate change.
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Climate Change and Evolution
Climate Change and EvolutionVideo Clip (2:41)
Video Clip (2:41)
A look at how a period of climate change millions of years ago impacted evolution.
Photo Galleries (2)
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Renewable Energy
Renewable Energy(5 Photos)
5 Photos
Usable energy derived from replenishable sources such as the Sun (solar energy), wind (wind power), rivers (hydroelectric power), hot springs (geothermal energy), tides (tidal power), and biomass (biofuels).
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Oil Spills
Oil Spills(7 Photos)
7 Photos
One of the most devastating forms of pollution, oil spills wreak havoc on marine ecosystems. They have a detrimental effect on plant life and endanger the lives of birds, fish and other animals.
Interactives (1)
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History's Worst Oil Spills
History's Worst Oil SpillsInteractive
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