I wrote about System Dynamics and growth a few days ago. Can the same reasoning mentioned from that blog entry be applied to policy, especially policies on climate change and world growth? After all, it took millions of years for humans to reach one billion people in 1800 and the next 130 years to reach the second. Today, the population stands at 6.5 billion - 4.5 billion increase in world population in one lifetime. The bigger question is: does this planet has enough resources to sustain such growth? Indeed, this is a morbid topic to many people and honestly, I don't claim to have a solid idea what the future may hold. But the book Limits to Growth: The 30-Year Update was suggested for people interested in exploring this topic from a System Dynamics point of view. I haven't have the chance to read it yet but here's a review of the book.