When science assaults our intuition, sometimes we respond with fascination, and at other times, when our favorite beliefs are on the line, with resistance. Can our mundane actions really change the climate of something so large as the Earth?
We humans, being self-aware, are keenly concerned about death. We have sought the so-called fountain of youth since time immemorial. As the pace of science accelerates we find ourselves at the threshold of an era where we just may start artificially lengthening human lifespan.