
← Bite-Size Climate Tech18 Dec 2025 · 13 min
Season 4 Finale - Sunlight‑Powered CO₂ Capture & K‑Pop Carbon Tales
<p>In this Bite‑Size Climate Tech finale, <strong>Dr Anna de Vries</strong> takes us from lab bench to lemonade stand to explain how <strong>photoacids</strong> could make carbon capture cheaper and greener. Traditional systems use heat or electricity to release CO₂, but Anna’s solution uses <strong>light‑reactive molecules</strong> that switch from alkaline to acidic under sunlight. In darkness they flip back, allowing CO₂ to be captured again. This swing cycle runs at ambient temperature and pressure and <strong>requires far less energy than conventional methods</strong>.</p><p>Along the way, we explore how this new science ties into pop culture (yes, there’s a K‑pop “soda pop” reference), why a young researcher chose climate tech over other paths, and how a cultural shift among the wealthiest could drive climate action. Anna closes the season with a simple message: <em>no impact is too small</em>.</p>