I was very excited when I read this book last summer. It sounds like it may be too good to be true and maybe it is. But I feel that if we could add more biochar to the earth as it explains in this book it would definitely be a step in the right direction and it may be a lot easier than we think. I have been adding it to my farm since I read this book last summer and plan on doing more as I go along. I have one small biochar tube currently to use all winter when we use our wood heater and plan on getting another. I have bought biochar to go on my garden as well.