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OZONE HOLE:
How We Saved the Planet

OZONE HOLE: How We Saved the Planet

 

Discover the forgotten story of the hole in the ozone layer and how the world came together to fix it. Hear from the scientists and politicians who persuaded Ronald Reagan and Margaret Thatcher to take action and solve the planetary problem.

 

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NOVA
Life’s Rocky Start

 

From the first sparks of life to the survival of the fittest, unearth the secret relationship between rocks and life. NOVA goes around the world and back in time to investigate how minerals are vital to the origins and evolution of life.

 

 

WE’LL MEET AGAIN
Rescued from Mount St. Helens

WEʻLL MEET AGAIN: Rescued from Mount St. Helenʻs

 

Join Ann Curry for the reunions of people whose lives crossed during the deadly eruption. Mindy searches for a scientist’s family to tell them how he saved her life, and Sue wants to find the helicopter pilot who rescued her from near-certain death.

 

 

NOVA
Zeppelin Terror Attack

 

NOVA reveals the untold story of the biggest flying machines ever made: Germany’s war zeppelins, which rained death down on British towns for two and a half terrifying years during World War I. In hands-on experiments, the program uncovers how the zeppelins were built and flown, and goes inside the desperate scramble to take down the zeppelins and make the streets of Britain safe again.

 

NOVA
Sinkholes: Buried Alive

 

In Tampa, Florida, in February 2013, a giant hole opened up under the bedroom floor of Jeffrey Bush, swallowing the 36-year-old as he slept. His body was never found. Bush was a victim of a sinkhole – a growing worldwide hazard that lurks wherever limestone and other water-soluble rocks underpin the soil. When carbon dioxide in the air dissolves in rainwater, it forms a weak acid that attacks the soft rocks, riddling them with holes. Sinkholes can occur gradually when the surface subsides into bowl-shaped depressions or suddenly, when the ground gives way – often catastrophically.

 

NOVA
Ben Franklin’s Balloons

 

The first stage in the adventure of human flight began with daring inventors and aeronauts in 18th-century Paris, where a handful of brilliant and colorful pioneers developed all the essential features of today’s hot air and gas balloons. Their exploits fascinated Benjamin Franklin, who was serving in Paris as the American ambassador. To explore this burst of innovation, NOVA re-creates key flights, including the world’s first manned voyage on November 21, 1783. A descendant of the Montgolfier brothers, who invented the hot-air balloon, will join a team to build an accurate replica of the fragile paper and canvas craft using 18th-century tools and materials. NOVA evokes the thrilling and daunting prospect that the balloon pioneers faced as they left Earth for the first time.