How can we combat climate change?

How can we combat climate change? is a collection of opinion on a very critical and important issue. While there is a certain truth in that we can't control nature we can definitely become more conscious about the effect our actions have on nature and how we can help, at least in not accelerating the inevitable changes, understand why and try and manage (or maybe if possible reverse) it better. Economic gain should not be the only measure of the society like it is in major societies these days. We need to define other criterias of improvement and popularize them.