A new report in Nature Communications states that if, from the end of 2018, there were no new fossil-fuel powered installations, and existing ones were replaced with renewable alternatives, then we could keep global temperature rise at 1.5 degrees C, the aim of the Paris Accord.
With climate-change-denying governments in power in various countries, including the USA and now Brazil, and with coal and oil money lubricating many politicians in other countries, this is not practically possible, but at least gives us ammunition to fight the dinosaurs.
Right now, we are suffering the consequences of a 1 degree global rise since the start of the Industrial Revolution (Revolting Industry?). This has killed millions of people, caused terrible suffering in many places, and billions of dollars of damage. A 1.5 degree rise will not be heaven — but at least should be survivable.
Trouble is, this study follows the pattern of most others: single line thinking. It is horrendously optimistic. Apart from politics, we need to consider many other interacting factors. Examples are plastic and overfishing destroying marine life at a great rate; the destruction of topsoil and its replacement by human settlements, roads, dams etc.; world population growth, which will increase simply because such a high proportion of the population is under 25 years old; and the effects of social pressures on aggression including wars and terrorism.
What we need is a new culture that does things differently, not merely the same things with different technology. Above all, we need compassion instead of conflict, simplifying instead of spending. We are the future past generations have stolen from. There is no future for us to steal from.