Last Watched

"Enviromentalism"  Sort by

Heaven and Hell

   1980    Science
Sagan discusses comets and asteroids as planetary impactors, giving recent examples of the Tunguska event and a lunar impact described by Canterbury monks in 1178. It moves to a description of the environment of Venus, from the previous fantastic theories of people such as Immanuel Velikovsky to the information gained by the Venera landers and its implications for Earth's greenhouse effect. The Cosmos Update highlights the connection to global warming.
Series: Cosmos
Walking with Cavemen
Walking with Cavemen

   2003    History
What is the Right Diet for You
What is the Right Diet for You

   2015    Medicine
Nature Great Events
Nature Great Events

   2009    Nature
Dinosaur Planet
Dinosaur Planet

   2003    Science
Roman Empire: Reign of Blood
Roman Empire: Reign of Blood

   2016    History
One Strange Rock
One Strange Rock

   2018    Nature