Let’s save our oceans! Donate here: https://teamseas.org/ You’d better mind your waste because it’s not piling up in landfills anymore. Today, we’re going to dump it all straight into the oceans. How much trash would that be? How soon would this change all marine life? Could this trash eventually displace […]
Hang on because we’re about to screech to a halt. That’s right. The Earth is going to stop spinning for five seconds. How much damage would this sudden stoppage cause? What would you experience in different parts of the world? And when the Earth starts spinning again, would it still […]
Imagine if all the Earth’s oxygen disappeared. Not forever, just for, say, an hour? Could you hold your breath that long? What would happen to the atmosphere? And could the Earth ever recover from this planet-wide suffocation? What will the lack of oxygen do to your inner ear? Will the […]
Thanks to Keeps for sponsoring this video! Head to https://keeps.com/Whatif to get 50% off your first Keeps order. It’s a Paleozoic party! We’re throwing it back 530 million years. When the Earth woke up from an ice age, the Paleozoic Era began. This era lasted for 289 million years, but […]
Go to https://www.upstart.com/WHATIF and find out how Upstart can lower your monthly payments today. You can check your rate without impacting your credit score in minutes. Thank you Upstart for sponsoring this video. Deep under the crust and mantle of our Earth lies its core. Earth’s core was formed during […]
Welcome to Jurassic World. In real life. Let’s bring back some of the most dangerous creatures to ever roam the Earth. What could go wrong? How would we be able to clone dinosaurs? What would life with them roaming the Earth be like? And which ones would eat you for […]
Imagine Earth with an even 50/50 split between continents and oceans. Our planet covered half by land half by water. How would this change the planet as you know it? What new kinds of vacations could this make possible for you? And what does the color of your pee have […]
Download the Speakly app at https://speakly.app.link/Speakly and get a 60% discount if you join the annual subscription. Something is very wrong with our Sun. It’s turned into a spinning lighthouse of death. What would make the Sun so much more deadly than usual? Would there be any way life on […]
Get a free What If Top 10 book when you sign up for our newsletter: https://underknown.com/newsletter/ Get ready for some serious burns and the instantaneous death of organisms. Let’s turn up the heat and bring the entire planet to a boil for five whole seconds. How would this apocalyptic heat […]
It’s a small world after all, because today, we’re shrinking Earth to the size of Pluto. But if our planet was this tiny, how would it alter the atmosphere? Why would the Earth get hotter? And how would gravity affect our water supply? Would we be tidally locked to the […]
