Whatever your feelings about Bill Gates and Microsoft, you have to admit that the dude is smart. This is a long clip at ~30 minutes, but the meat is all in the first 20. It’s about the need to develop new electricity production NOW, and how a new nuclear technology looks like a good bet.
Throwing a bone to the Marketing angle, Bill does a great job of presenting PhD-level concepts at an undergraduate pace: he preserves the academic authority but illustrates it in a joe-average way. Know your audience.