I've said in quite a number of times, whenever any prediction of the magnitudes given, it behooves those making the such predictions to answer the energy equation first.
Until they do in any sort of reasonable way, all such predictions are completely bogus and do not do give those promulgating such predictions any veracity.
The politically correct dogma of anthropogenic climate change (ACC) has given rise to a situation where those who believe in climate change and who believe that it is mostly natural are classified as climate change deniers by ACC dogmatists and are classified by climate change deniers as climate change freaks.
Climate change is inevitable. However, we do not know what we can mitigate and what we have to endure. We need honest research and not this current politically correct based research being undertaken today.
It is an unfortunate reality that greed is a cause of many human and social related problems and that any natural climate change the planet is undergoing only enhances those human social problems.
If we continue on the politically correct bender of trying to lower CO2 levels without understanding the long term consequences, we are going to kill ourselves. Within very specific limits there is a broad range of CO2 levels (much higher than current levels) that would be highly beneficial to the planet and to us. This is based on evidence released in the last couple of years.
There is much to recommend not polluting our planet, but focussing of the furphy that is CO2 mitigation is wrong in oh so many ways.
We need to look at a holistic methodology to agriculture and manufacturing to ensure that these areas can be highly productive without the current attendant problems. There is more than enough capacity to feed and clothe the human population of this fair planet, but as people are, on the whole, greedy and self-serving, this is not going to happen any time soon.