We know that a better world is possible. One where we all get to breathe clean air, marvel at the abundance of wildlife and enjoy life without worrying if it's about to self-destruct. But how do we get there? And can it really be that easy? And fun? And free?

How to Save the World for Free will galvanize you to think and live differently, covering all key areas of our lives, from food and travel to politics and sex. You will feel better, live better and ultimately breathe better in the knowledge that every small change contributes towards saving our world.