Why this effect? Not because @GretaThunberg ate less meat or encouraged her family not to fly: if that's all she'd done, we'd never know her name. No, it's because she did one simple but incredibly powerful thing we can all emulate: she raised her voice to advocate for change.

Every year, I add 2 new low-carbon habits to my life. But every DAY, I do the most impt thing anyone can to do change the system we live in: I TALK about climate change. Not the science details, but why it matters and how, working together, we can fix it.

Individual's power to alter the world is splashed across human history; and social science is starting to understand how we do this. A tsunami of change begins by changing social norms & accumulating a groundswell of (at first) nearly invisible support.

And who's the best person to talk about climate change? It turns out we scientists are the second most trusted messengers. The number one most effective person is YOU: to friends, family and people you know.

I'm so convinced of this that I've spent the last year reading dozens of books on everything from philosophy to neuroscience & 100s of articles from psychology to social change & putting it all into this book that I'm VERY excited about. Out in Sept 2021!