@disillusioned: going back to the book, you are claiming that if we don’t make a change, earths temperature will suddenly rise 2C in 30 years if the predictions are correct? I know that it is talking about pre-industrial levels.
Even so, we have seen minimal variations since pre-industrial times, despite China/India nearly doubling the US output over the last few decades, I wouldn’t expect abrupt changes after the world starts slowly decreasing its total output (which is again, very hard to measure in comparison with the output from volcanoes and the Amazon).
If anything warming out of the mini-ice age the world was in during the Middle Ages has been put on a slower curve based on other data points we have from the past to the point scientists in the 70s thought we would CO2 ourselves back into an ice age. Now global warming has once again morphed into global up-and-down temperatures. Super-heating and global warming have been completely debunked, the term of the decade is global change which could be up or down. So the book is unlikely to be correct, IPCC currently models a 1-1.5C temperature change by 2100 with a 2.5-3C in the worst case where everyone goes back to coal/wood burning. Oh, yes, since pre-industrial time. That is still more than 50 years off the prediction of the book and several degrees as well, depending on outcome.
That’s always the problem with prophecy; besides the vagueness and number of prophets, it’s always some distance away and they’re also always correct until they’ve been completely debunked and then we will hear about how we misinterpreted it.