Whether humanity will survive really is an open question. Despite all the rhetoric and protests and promises the annual CO2 emissions have continued to increase steadily. It’s wishful thinking to imagine that we are going to do anything about this before the consequences of our choices force our collective hand. Any report or scientific paper that includes a phrase like ‘there is still time’ is just not accepting the reality of the situation. A year ago James Hansen published Global Warming in the Pipeline where he wrote “Equilibrium global warming for today’s GHG amount is 10°C”. A 4–7 degree rise over 5000 years ended the last ice age, Ocean levels rose 400 feet. A 10 degree rise in a century or so would be way too fast for most species to adapt. It would inundate the majority of our most populated cities. I could go on, but I get depressed writing about this.
Okay, but “that is entirely your fault, grandma” generates a lot more discussion than “yeah, but you were a participant in a system along with billions of others which hid its externalities until it was too late to do anything about them”