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
Frozen Planet
Frozen Planet

   2011    Nature
Vice
Vice

   2013    Culture
D-Day
D-Day

   2013    History
Power of Art
Power of Art

   2006    Art
Wonders of Life
Wonders of Life

   2013    Science
Nova Wonders
Nova Wonders

   2018    Technology