Just to present a contrarian pessimistic view. If I (we) do everything right it just delays the inevitable for a short period of time. So I turn the heat and AC down, walk or bike, and do all of the right things I spend ten years denying myself and being less than comfortable and we delay it for a year and the majority of the world lives like there is no tomorrow. They had ten years of comfortable living and I had ten years of discomfort. In the end we are all at the same place.

Eat, drink and be merry for tomorrow we die.

Not really my philosophy but food for thought.