There have been a flood of movies released lately that emphasize the importance of taking care of our planet, from the humorous Wall-E to the suspenseful The Day the Earth Stood Still. Although I believe much of the hype about catastrophic climate change is most likely greatly inflated, we certainly do have a responsibility to care for the earth.
In The Day the Earth Stood Still (2008), the alien Klaatu says that it is more important for the Earth to survive than it is for human-kind to survive. There are few planets that can sustain complex life, he says, and it would be better to destroy humanity and let the earth have a fresh start than to let humanity turn the world into an uninhabitable rock. It must be decided whether humans are capable of improving to the point that they are not a threat.
Some time back, I wrote an article about an essay by C. S. Lewis from Christian Reflections titled “The Funeral of the Great Myth." The "Great Myth" for him was the idea that humankind is progressing and gradually becoming better and better. Develpmentalism is not a new Hope that has just shown up recently. It has been popularized in science fiction for decades. Somehow we will overcome our proclivity for destroying ourselves-whether by war or by pollution. Peace will reign on Earth, and we will take our place among the stars.
C. S. Lewis wrote an article in 1958 for the Christian Herald titled "Will We Lose God in Outer Space?" (Published as "Religion and Rocketry" in the C. S. Lewis anthology The World's Last Night--1960, still available as a reprint.) While logically explaining why life on other planets would not preclude God or Christianity, he wonders whether God would allow us to venture out with the possibility of contaminating unfallen races. (A subject which, of course, he delves into in his Space Trilogy.) Lewis did not believe that we would progress to a point where we would no longer be a threat to hypothetical worlds.
In the 1951 version of The Day the Earth Stood Still, the reason for Klaatu coming to Earth was not to save it from us, but to save the other planets from us. The concern was not what we were doing to our own species or our own planet, but what we might do if we were to travel to other worlds. Klaatu explains how these worlds have solved the problem of hostility and war not through progressing beyond it, but by controlling it. Robots have been programmed to take action against any aggression. The peace is maintained by the threat of force.
Lewis believed that the final peace will come by force. In 1952, he wrote "The Christian Hope--Its Meaning for Today" for Religion in Life (titled "The World's Last Night" in the above anthology). He believed the Second Coming of Christ would be apocalyptic in nature. No gradual "bringing in" of the Kingdom, but a sudden, forceful take-over. He presents sound theological reasons for supporting such a Coming, and uses the same arguments against Develpmentalism that he used in “The Funeral of the Great Myth."
Lewis does remind us that Christ said no one knows the day or hour of His Coming--He did not even know it Himself (one of the great mysteries of the incarnation). But we should live with the reflection that it could be at any moment, and that He will come in Judgment.
We cannot always be excited [about His Coming]. We can, perhaps, train ourselves to ask more and more often how the thing which we are saying or doing (or failing to do) at each moment will look when the irresistible light streams on it; that light which is so different from the light of this world--and yet, we know just enough of it to take it into account.