I believe that apocalyptic nightmares are the inevitable conclusion one would expect if one assumed that humans will continue doing the exact same thing they are doing today. I believe this is a mistake. My predictions of the future are of transition. I am certain changes will occur and adaptations made. Some perhaps will seem horrifying by todays tastes, but when they happen they will be accepted as realistic and practical for reasons that haven't yet impacted us in the minutia of our daily lives.

And if you think about his predictions in this context, well, he isn't predicting extinction of the human race, is he? I wonder if he realizes that he has actually suggested a means of survival in spite of his doom and gloom scenario. There's always a way, and I doubt it will be as bad, or as sudden as he suggests, if future transitions are bad at all. Some might be, obviously.