We often think of fighting climate change as a drain on our happiness - it'll mean sacrificing the things we love, like air travel or eating hamburgers. But researchers Jiaying Zhao and Liz Dunn have pioneered the idea of "Happy Climate" that shows us ways in which doing good for the planet can make us feel great.   

Changing how we fly, drive, shop and eat in very small ways can make us enjoy our travel, our friends, our wardrobes and, yes, even our steaks, more than ever before.  

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