At the moment, the world is buying billions of lottery tickets, without even knowing if there is a prize. It's ludicrous the way people have taken to an unproven hypothesis, just following some very well meaning but biased climate models, produced by people who are so dedicated to a cause that no dissent or contrary evidence is allowed.
But it's not all bad news. Renewable energy tech can't be a bad thing, if it keeps the price of gas and oil down, and reduces the reliance on a few energy-rich exporters. And fossil fuels will of course get scarcer in the future, so it's not a bad thing to be ready for when that happens.
My problem with it all is the notion the world seems to have, that if CO2 is reduced, all will be well. Ignoring the real problem of overpopulation of the planet, which IS real, and if people stopped ignoring it and did something, they could make a REAL difference for far less money than is being spent on CO2 mitigation.