"I could easily go through all my books and mark the ones that were original, mark the ones that were adapted or pre-published that I've found. I'm guessing though that probably 75% of them are personal events. I just love a personal story."

Previous Quote

We finally know where the red line for climate really is. After the rapid melt of arctic ice in the summer of 2007, our best scientists, led by NASA's Jim Hansen, went back to work and produced a series of papers showing that with more than 350 ppm (parts per million) of carbon dioxide in the atmosphere, we couldn't have a planet "similar to the one on which civilization developed and to which life on earth is adapted."

— Bill McKibben