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215: Don't Hesitate
Plus, interstellar methenium, Korean sci-fi, neuroprotective CPR, and good news on global water, sanitation and hygiene, animal comebacks, rewilding in Spain and rock-weathering for carbon removal.
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246: Jetpack Grand Prix
Plus, a risky prediction, electron crystals, better batteries are coming, and good news on education in Ghana, electricity in Rwanda, EV sales in China and conservation in Peru