Don't want to sound like a gloomy gus or a doomsayer, but I'm pretty sure that the moment we started burning fossil fuels, it was already too late to turn back.
More importantly, though, is that no matter what we do the planet will do its thing & that is to constantly change, not only how it looks, but also the temperature. Once again I think that this is another one of those things where Man thinks that the Earth, the Universe & everything, revolves around him.
I cannot believe how egotistical we can be. There is nothing we can do to stop the climate from doing what it will do. Oh & by the way, the climate couldn't give a shit about us.
Try to think of this rant as not so much a case of negativity than a touch of realism.
Allan