Busy scientist Adam Aron had too much on his plate to think deeply about climate change - until he read a scary report about what lay in store for the planet if no one acted to cut greenhouse gases. 

So Adam did more and more to fight climate change, until activism became his full time occupation. And the move made him happier and more content. We can't all give up our normal lives to stop global heating - but even making small contributions to the cause can make us feel more connected, more fulfilled and happier.