I think Rosling is correct that per capita carbon emissions is the key metric for climate change responsibility. He stressed that and I was convinced. But his writing about climate does not reflect the way quantitative earth system scientists understand global human caused climate change. And it misses the fact that human plans and commitments to reduce emissions are enough to stop the rise of atmospheric greenhouse gases at any projected date in the future. Or the fact that species and ecosystems keep declining as they have since the start of the industrial revolution. I think Rosling tries to be clear eyed about the facts of the world and that he succeeds more than not. He is very well qualified to write on this important subject but I for one found it slow going with little new information. Since I have to quantify my rating I’m giving it a 3+.