It's the start of STEM month and Dr. Leah Leach's 1 Cool STEM thing is about climate change activist, Greta Thunberg. Get to know more about this fierce 16-year-old and why we connect with her. We also talk about more young climate change activists. But we can't always be serious so we Leah brought some STEM puns and we talk about the best teen-team up ever. Wonder Twins powers activate! 

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