What does teenage environmentalist, Greta Thunberg, have in common with Leonardo DiCaprio? It’s the same parallels that can be drawn between documentary-maker Stacey Dooley and Tesco’s plant-based innovator, Derek Sarno. The answer doesn’t lie in the punchline of a bad joke – rather the opposite. It’s their ability to incite change. While their own individual ambitions to help the planet in various ways differ – from animal rights, feminism, environmental issues, and veganism – they’re all united by their dazzling knack to inspire others. We’ve put together 10 people who have made significant impacts on society in the last year, with our youngest activist aged just 12, right the way to our oldest at 93, and we want their powerful social action to motivate you. If they can do it, why can’t we? Even by having this very magazine in your hand, you have already started to think about the small changes you can make to create a better planet for everyone. After all, what better way to make a difference than being the change you want to see in the world?