I spent a couple of years writing a blog on climate change called Planet Restart, the idea being we needed to push the "restart" button to begin a new way of thinking about how we should be living on the planet. I did it for my children and grandchildren because I knew in my bones that the climate was changing, and I wanted them to understand how this would affect every decision they would make. I started out with a sense of foreboding and hope, but not a lot of knowledge. I ended up at the crossroads of doom and gloom, knowing a whole lot more than I wanted to. Simply put, if the science is correct, then it is already too late … too late to prevent a rise in average global temperatures that will bring with it serious consequences … too late to avoid the displacement of millions of people due to rising tides and shifting rainfall patterns and increasingly erratic growing seasons … too late to avoid the economic and social upheavals that will inevitably ensue. These 65 essays reflect my personal journey to understand the three modern-day horsemen of the apocalypse who stalk mankind: climate change, peak oil, and population growth. What I found was not reassuring. But don’t take my word for any of this. Learn about the issues and make up your own mind. If you come to the same conclusions I did, then you really need to start thinking about how to prepare your children and grandchildren for a world that will be very different from the one they see around them today … a world as challenging as anything that mankind has ever faced.