It isn’t a stretch to believe that there is nothing that can be done at this point. He isn’t the only one who believes in near term human extinction (although he’s the only one saying ten years) – see our Professor Tim Garrett video posted in August, 2016 where he makes it clear how and why it will happen (although not saying as soon as ten years). Guy is indeed one of the only ones who focuses on the locked in positive feedback loops and is also correct that no one calculates that. There is one person who comes close and that’s Paul Beckwith who has been shouting, “CLIMATE EMERGENCY” and stressing the need for geoengineering as the only hop to fix it in time.
Any species that blooms to an extreme and uses up their host resources dies. That’s a fact. Just today on this site was posted a reference to an article that claims cancer is up 33%.
In the end it may be something as tiny as mosquitoes and ticks, who’s populations exponentially boom in warmer and longer warm seasons, that bring down the big brained but oh so dumb human beings.
10 years – we’ll see.