Yeah, disturbing.
That's why I'll buy an E-car in the next 5 years. I have already got myself an e-mountainbike, which allows me to drive 100km (65 miles) without re-loading the battery. And it allows me to drive less with my current car.
But for the planet as a whole, it could already be too late: humans are reproducing like rats or worse (especially the Africans and Arabs) and more and more consumers (= 3 billion more) will be added in the next 40 years. Who will wreck the planet even more. You can only do your small part here.
But generally, the planet would be better off if 99.9% of the human cancer would be eliminated (and then there'd still be 8 million around).
If you were to read the study (or even merely the CNN article linked in the description) you'll see that the researchers considered population gain to have relatively effect on their predicted temperature rise.
