Anyone who wants to actually understand what the IPCC is finding should go read the actual report and they will find just like all the other IPCC reports that things are not even close to what the media and environmental organizations want you to believe, in fact, the IPCC reports are getting less concerned not more and you will find there is a lot more uncertainty with a lot of metrics.
There is no scientifically demonstrated consequence of climate change we don't know how to deal with today let alone in 80 years from now. Yes the use of fossil fuel have externalities, some of them negative luckily most of them positive.