By Ron Sparkman | @UpportunityU
For the first time in Earth’s history, our planet is experiencing a confluence of rapidly accelerating changes prompted by one species: humans. Climate change is only the most visible of the modifications we’ve made—up until this point, inadvertently—to the planet. Yet, without minimizing the challenges of the next century, David Grinspoon suggests that our present moment is not only one of peril, but also great potential, especially when viewed from a 10,000-year perspective. Although our current behavior threatens not only our own future but that of countless other creatures, our species has surmounted the threat of extinction before, thanks to our innate ingenuity and ability to adapt. Our challenge now is to awaken to our role as a force of planetary change, and to grow into this task. We must become graceful planetary engineers, conscious shapers of our environment and caretakers of Earth’s biosphere. This is a perspective that begs us to ask not just what future do we want to avoid, but what do we seek to build? What kind of world do we want? Are humans the worst thing or the best thing to ever happen to our planet? Today we stand at a pivotal juncture, and the answer will depend on the choices we make.
We cover topics like the definition of an astrobiologist, the search for extra-terrestrial life, what is was like to work with Carl Sagan, his work on StarTalk and StarTalk AllStars, his new book “Earth in Human Hands”, and his advice for burgeoning scientists!