Cloud-spotter Gavin Pretor-Pinney tells us to look up at the sky, admire the clouds and appreciate what they can offer.

Watch the full talk:    • Living Life with Your Head in the Clo...  

Google Zeitgeist is a collection of talks by people who are changing the world. Hear entrepreneurs, CEOs, storytellers, scientists, and dreamers share their visions of how we can shape tomorrow.