What If Oxygen Doubled in Earth’s Atmosphere?

Take a deep breath. We take 23,000 breaths a day trying to get oxygen to our brain and cells. Oxygen is essential to our survival. But it's only a small percentage of what's in the air we breathe. So what if there was more of it? What would happen? Would it cause giant insects to roam the streets? Would everything catch fire? Would it make you superhuman? Transcript and sources: https://insh.world/science/what-if-ox... Made possible with the support of Ontario Creates http://www.ontariocreates.ca Watch more what-if scenarios: Planet Earth:    • What If Earth Was in Fact Flat?   The Cosmos:    • Video   Technology:    • What If the Sahara Desert Was Covered With...   Your Body:    • What If You Were Born on a Space Station?   Humanity:    • What If You Were the Last Person on Earth?   Follow what-if on Instagram for bonus material:   / what.if.show   Suggest an episode: http://bit.ly/suggest-whatif T-shirts and merch: http://bit.ly/whatifshop Facebook Watch:   / what.if.science   Watch on Tubi: http://bit.ly/what-if-tubi "Imagination will often carry us to worlds that never were. But without it, we go nowhere." — Carl Sagan If you enjoy What If, make sure to check out our other channel "Underknown":    / interestingshit   Produced by Underknown in Toronto, What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different. Feedback, inquiries and suggestions: https://underknown.com/contact