Ozone Hole Recovery
A 1986 study of the South Pole determined the cause of a hole in the ozone layer and led to an international treaty banning the production of chlorofluorocarbons (CFCs). Twenty years later, in an August 23, 2006, report, a scientist from the original expedition discusses the ozone’s slow recovery.
Related Speeches & Audio (10)
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Ozone Hole Recovery
Ozone Hole RecoveryAudio Clip (0:26)
Audio Clip (0:26)
A 1986 study of the South Pole determined the cause of a hole in the ozone layer and led to an international treaty banning the production of chlorofluorocarbons (CFCs). Twenty years later, in an August 23, 2006, report, a scientist from the original expedition discusses the ozone’s slow recovery.
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Iceland Volcano Erupts
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When the Icelandic volcano Eyjafjallajökul erupted on April 14, 2010, it produced a large cloud of steam and volcanic ash that grounded air traffic in Northern Europe for several days. A news report following the eruption describes the resulting air travel chaos.
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Hurricane Katrina Destruction
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Audio Clip (0:16)
One year after Hurricane Katrina landed on the Gulf Coast, a member of the National Oceanic and Atmospheric Administration’s helicopter crew remembers the swath of destruction he viewed from above on August 29, 2005.
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BP CEO Denies Responsibility for Deepwater Horizon Oil Spill
BP CEO Denies Responsibility for Deepwater Horizon Oil SpillAudio Clip (0:22)
Audio Clip (0:22)
On April 20, 2010, an explosion on the Deepwater Horizon drilling platform, located off the coast of Louisiana and under lease to British Petroleum (BP), resulted in the worst oil spill in U.S. history. In a May 3, 2010, interview, BP CEO Tony Hayward places blame for the accident on the owner of the drilling platform, although he promises that BP will clean up the mess.
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Major Earthquake and Tsunami Hit Japan
Major Earthquake and Tsunami Hit JapanAudio Clip (0:44)
Audio Clip (0:44)
On March 11, 2011, an 8.9-magnitude earthquake struck the coast of Japan, rattling a 500-mile region and setting off a tsunami. A report from the U.S. Geological Survey describes the massive quake as one of the largest ever recorded.
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Hurricane Katrina Worst in U.S. History
Hurricane Katrina Worst in U.S. HistoryAudio Clip (0:34)
Audio Clip (0:34)
A November 29, 2005, report of the year's hurricane season singles out Katrina, the category-3 storm that hit the Gulf Coast on August 29, as the most destructive hurricane in U.S. history.
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China Earthquake Devastates Region
China Earthquake Devastates RegionAudio Clip (1:07)
Audio Clip (1:07)
On May 12, 2008, a 7.9-magnitude earthquake shook eastern Sichuan, China, killing thousands. It was the country’s worst natural disaster in three decades. A report from the National Earthquake Information Center moments after the quake describes the situation as preliminary news rolls in. The quake, originally thought to be a 7.8, was later upgraded.
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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.
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Radio Astronomy Points to Extraterrestrial Life
Radio Astronomy Points to Extraterrestrial LifeAudio Clip (4:21)
Audio Clip (4:21)
In a 1960 broadcast, a Voice of America reporter interviews Dr. Campbell Wade of the National Radio Astronomical Observatory about his discoveries analyzing radio waves to see 1 billion light years into space and about the possibility of life on other planets.
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Eisenhower on Atomic Energy
Eisenhower on Atomic EnergyAudio Clip (1:59)
Audio Clip (1:59)
On December 8, 1953, President Dwight D. Eisenhower addresses the General Assembly of the United Nations on the peaceful use of atomic energy.
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Exxon Valdez Oil Spill
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Shortly after midnight on March 24, 1989, the oil tanker Exxon Valdez struck Bligh Reef just off the coast of Alaska, dumping more than 11 million gallons of crude oil into the pristine environment.
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Climate Change and Evolution
Climate Change and EvolutionVideo Clip (2:41)
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A look at how a period of climate change millions of years ago impacted evolution.
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Global Warming: Looking for Proof
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Researchers investigate Kilimanjaro and the Andes looking for evidence of Global Warming.
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Planet Earth
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Over billions of years, Earth has developed essential properties that allowed living organisms to form.
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Mankind in 2 Minutes
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Experience the story of Mankind in 2 Minutes.
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Mankind Decoded Sneak Peek
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Check out a sneak peek of the upcoming series Mankind Decoded.
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Al Gore on Climate Change
Al Gore on Climate ChangeVideo Clip (4:22)
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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 Discusses Global Warming
Al Gore Discusses Global WarmingVideo Clip (2:00)
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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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Deconstructing History: North Pole
Deconstructing History: North PoleVideo Clip (1:36)
Video Clip (1:36)
Ever wonder how many miles it is from the North Pole to the South Pole? Take a journey to the northernmost point on earth to uncover this and other facts and figures of the Far North.
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Global Warming
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How the Earth was Made shows us how global warming has changed the face of the Earth forever.
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