Spaceship Earth

Spaceship Earth enters 2012 belching smoke, overheating and burning through fuel at a frightening rate. It’s feeling pretty crowded, and the crew is mutinous. No one’s at the helm. Sure, it’s an antiquated metaphor. It’s also an increasingly apt way to discuss a planet with 7 billion people, a global economy, a World Wide Web, climate change, exotic organisms running amok and all sorts of resource shortages and ecological challenges. More and more environmentalists and scientists talk about the planet as a complex system, one that human beings must aggressively monitor, manage and sometimes reengineer. Kind of like a spaceship