Over the weekend I watched a one hour documentary on Chris Hadfield, the first Canadian astronaut to be commander of the International Space Station. The documentary was narrated by David Suzuki.
Chris Hadfield spoke to school children and numerous other folks to familiarize them with the importance of space exploration.
A few other former and current astronauts were asked to comment as well. One astronaut said that the Earth is a spaceship too. He said that on human-made spaceships, oxygen and other necessities are replenished as needed, but the same is not true about Spaceship Earth. If we keep polluting it and global warming continues at the current rate, then Spaceship Earth will become uninhabitable and there is no nearby planet from where we can import oxygen and other necessities of life. By giving this analogy, the astronaut emphasized the need to reduce pollution and production of CO2.
You may watch the full documentary here.
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