Your best ideas happen in conversations. Plaud makes sure you never lose them. 22% off—biggest sale of the year. Shop now on Plaud site or Amazon. Get 10% off here: Exclusive link: https://plaud.ai/WHATIF 10% code: WHATIF Amazon: https://amzn.to/4h5jKAG NotePin S: https://amzn.to/4bQo6bc 10% code: T5T8G876 Mountains of ice across the planet explode into water. Entire cities and countries, obliterated. The biggest worldwide tsunami in the history of the planet. But where would all this water go? Which places would be lost, and which survive? And how long until humanity would go extinct? 00:00 What If All Glaciers Melted Instantly? 00:42 Mountain Glaciers vs. Ice Sheets 01:25 Scenario 1: All Alpine Glaciers Melt Instantly 02:03 Drying Up the World's Major Rivers 03:47 The Impact on Coastal Sea Levels 05:25 Scenario 2: The Two Great Ice Sheets (Greenland & Antarctica) 07:42 99% of Freshwater Ice & Gravity Shifts 08:24 The 65-Meter (215 ft) Sea Level Rise 09:16 The Deep Ocean Tsunami Physics 10:14 North Pole Tsunami: Hits & Inundation 11:21 South Pole Tsunami: The Antarctic Beast 12:12 Waves Collide: Wiping Out Cities & Countries 13:14 The New Inland Map & Secondary Disasters 15:25 Scenario 3: Melting the Sea Ice (The Cryosphere) 16:36 Why Sea Ice Doesn't Raise Water Levels (Displacement) 17:08 The Albedo Effect & Accelerated Global Warming 18:31 The Climate Feedback Loop & Civilization Collapse 19:40 Can the Glaciers Ever Return? (Hysteresis) 20:42 The New Waterworld Era Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community 👇 📘 The What If Book: https://bit.ly/WIFBook 📝 Website: https://whatifshow.com/ ───────────────────────────── JOIN THE COMMUNITY ───────────────────────────── 💬 Discord: https://discord.gg/Bj5UnspbwE 📸 Instagram: http://bit.ly/whatif-instagram 🐦 Twitter/X: http://bit.ly/whatif-twitter 📘 Facebook: http://bit.ly/facebook-whatif ───────────────────────────── SUPPORT WHAT IF ───────────────────────────── ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join Patreon: https://www.patreon.com/whatifshow/membership ───────────────────────────── 📩 Brand partnerships & collaborations: [email protected] Produced by Underknown: https://underknown.com #glacier #icecap #globalwarming #climatechange #climate #earth #ocean #water #sea #sealevel #sealevelrise