You wouldn’t notice it at first. But every second, the air around you is thinning, little by little. After 30 seconds, you’re gasping. Engines fail. Hospitals go dark. By minute two, planes are crashing, oceans are suffocating, and the sky is turning deadly. If Earth started losing 1% of its oxygen every second, this is exactly how fast the world would end. But how long would it take until we completely run out? Can anything survive in a zero oxygen world? And is there hope for humans to some day repopulate the Earth? 00:00 What If Earth Lost 1% of Oxygen Every Second? 00:44 10 Seconds 02:12 30 Seconds 07:18 1 Minute 10:46 2 Minutes 13:29 8 Minutes - 99% Oxygen Gone Support us on Patreon: https://www.patreon.com/whatifshow/membership Get the What if book: http://bit.ly/ytc-the-what-if-100-book Join this channel to get access to perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join Interested in sponsoring our episodes or collaborating? Email us: [email protected] Our other channels: How to Survive: https://bit.ly/how-to-survive-show Aperture: https://bit.ly/aperture-show T-shirts and merch: https://bit.ly/shopwhatif Newsletter: http://bit.ly/whatif-newsletter What If elsewhere: Discord: https://discord.gg/Bj5UnspbwE Whatsapp: https://whatsapp.com/channel/0029Va8VC502ER6r1yk1yP2Y Instagram: http://bit.ly/whatif-instagram Twitter: http://bit.ly/whatif-twitter Facebook: http://bit.ly/facebook-whatif Produced by Underknown: https://underknown.com #whatif #earth #oxygen #catastrophe #disaster #planet #atmosphere