The most extreme engineering project in the history of the world will be performed OFF the world… on Mars. A variety of schemes have been floated over the past few decades with the intent of making Earth's nearest neighbor more amenable to life of the earthly variety – in other words, Terraforming. Naturally the scale is huge – comets may be redirected to impact the Red Planet to provide water for oceans, which would be seeded with algae in order to boost the oxygen content in the Martian atmosphere. Other schemes entail the placement of giant orbiting mirrors to focus sunlight upon Mars' polar icecaps, thus releasing liquid water and gaseous carbon dioxide to kick-start a greenhouse effect.
Terraforming Mars is no pie-in-the-sky scheme; it could be the salvation of our species should our actions on Earth continue to reduce our home planet's livability. It would be most fitting if someday, as predicted/depicted in The Million-Year Picnic, a short story from Ray Bradbury's book The Martian Chronicles, this scene should take place: A father answers his children's desire to see Martians by suggesting they look into the canal their boat is floating on… in which they view their own reflections.
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