48:01
Inventions That Could Help Heal the Planet | An Optimist’s Guide to the Planet
1:08:12
The Real Cost of Net Zero: The shocking truth of the renewable energy push
48:06
Move: Clever Inventions Behind Cleaner Transport | An Optimist’s Guide to the Planet
30:25
Why A Mile-High Skyscraper Is Almost Impossible | The Limit
22:12