Geography of Earth with WAY More Water (+2000m)

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Published 2022-05-25
Enough talk about "historic sea levels" or "climate projections," today we're flooding the Earth with unrealistic amounts of water to see what we can new insights we can gain about our planet.

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"Ave Marimba" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
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"Deliberate Thought" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
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"Savannah (Sketch)" Kevin MacLeod (incompetech.com)
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Sources / Further Reading:

www.floodmap.net/

agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2…

All Comments (21)
  • This would make a great map for a game world.
    Especially with the whole "It was Earth all along" twist baked in.
  • Living in Mexico in the central valleys, as soon as I started watching your interesting video, I began to realize that in this dystopian future, Mexico would be the country that would conserve the largest percentage of its territory in the world. Assuming that the event happened in a short time, Mexico would also keep its main cities since several of them are located above 2,000 meters, so I think that this would be the only way we would become a world power :)
  • @Max_Griswald
    I'll be honest, I never really paid much attention to the rivers in Asia, but after watching this video I found it fascinating that major tributaries of the Brahmaputra River (1806 miles long, then flows into the Ganges-Padma River (1569 miles long)), the Irrawaddy River (1422 miles long), the Salween River (2044 miles long), the Mekong River (3051 miles long), and the Yangtze River (3900 miles long) all start or pass within a strip of land 130 miles wide. The two furthest discharges are about 1950 miles apart as the raven flies, or around 5200 miles (4524 nautical miles) by sea.
  • if sea levels were that high for millions of years, the landscape would of course look different because erosion and sedimentation cause landmass to "accumulate" at or around the altitude of sea level (in addition to different climate patterns causing different rates of erosion). areas much higher get eroded, and their sediments are deposited in deltas, increasing the amount of land that is near sea level. if you look at a graph that shows the total area of land on earth at a particular altitude, you will spot a distinct spike around sea level because that's where sea level has been ±100m for hundreds of millions of years. check out the same graph for mars and see if you can spot a spike that might represent what sea level could have been over there back when mars still had water
  • @Leyrann
    Going to get in early rather than watch the video before commenting, because I absolutely love the concept and I want to see a follow-up video: What if the sea level was a lot LOWER? Not the 100-200m of an ice age, but 500 or 1000 meters, or maybe even more.
  • @DiggyWizzy
    This would be a bird-dominated world 100%
  • @ayaan2568
    0:56 "This dosen't alter that planet that much"
    Bangladesh: Confused 170 million people screaming
  • @ZephyrGlaze
    when you're so into islands that you have to imagine different ways exotic islands could exist.
  • @Kasaaz
    There's a Stephen Baxter novel called Flood that is pretty fascinating. Follows a group of people as the seas rise like this, mostly because of water trapped beneath/in the crust finally breaking free and being forced up into the ocean by the weight of the plates, I think.
  • 4 mountains in the Appalachian Mountains (Eastern US Mountains) poke right above the water line as little isolated islands in a giant sea.
  • The geography of the American SW's mountains is probably what fascinates me the most. You can see what becomes of the Sierra Nevada of California, the White Mountains/Mogollon Rim of Arizona, and the N-S ranges of Nevada. On that last region, I honestly can't think of an archipelago that looks like that at present sea levels.

    Also, Pinetop-Lakeside would probably have to be renamed to Palmtop-Seaside, amirite?
  • Oceanographer here, this was a great video! I especially like how it leads to open ended questions for thinkers of all disciplines. In my case, I would like to point out that the lack of substantial continental boundaries would lead to more energetic, circumplanetary annular currents at many latitudes. Currently, we only have this in the Southern Ocean in the Antarctic Circumpolar Current. The shallow seas in North America and the Andes would likely still allow for western boundary currents, but there would doubtless be a lot of interesting interaction between water masses on either side of the archipelago, much like we see today between the Pacific and Indian oceans being connected through Indonesia.

    Needless to say, all terrestrial climate would be some variety of oceanic, save for maybe the most sheltered of Tibetan uplands, while monsoons wouldn't exist due to a lack of large landmasses, which are involved in that climate process.

    There's also the question of sea ice dynamics in the absence of continents, as well as the effect of a water world albedo on climate regulation compared to today's 30% land paradigm. This whole thought exercise would be an interesting problem to tackle with a coupled general circulation model.
  • There was a documentary made about this topic over 25 years ago. It´s called Waterworld.
  • @boydmccollum692
    not to be pedantic, but the Rocky Mountains in North America are above 2000 meters - the lowest point is 7630 feet or 2325 meters. I live in the foothills of the Rockies and the idea of moving a few miles west, and having great beach front property to boot, is very appealing.
  • @fablechillin
    Tibet and the Andes are great but I feel like there could've been more stress on the archipelagos that remained(like the Cordillera archipelago you talked about). It would be a great showing of what island specific phenomena are out there as there would be islands in the most diverse of places. Also I feel like 1000m while not as extreme would also be very interesting. Great vid!
  • I feel like this setting with tibet would be very interesting for how a civilization would start on it and grow. If there was a landmass like this surrounded by water. They’d have some flat lands good for building, lots of lakes and ponds, and they’d be sheltered by mountains all around. And then there’s those mountain range like islands north of them which could be later explored. Would be cool to have as a map in one of those games like that where you make a civilization
  • @zakiducky
    We’re getting into territory that’s really hard to predict, but with so much extra water, wouldn’t the different distribution of weight on the tectonic plates cause them to move differently anyways? Tibet, the Andes, the Rockies and so on might not even form if all the extra water was here from the beginning. So this makes a fun exercise if the earth suddenly got an extra 2km depth of water, but god knows what the landmasses would develop like if we started with the extra water.
  • Chile: I am the longest thing in south america
    Andes: Hold my LENGTH
  • @pyyomdjam
    A video on how the Amazon was formed would be very interesting. From the original Amazonian craton with the river running from east to west and flowing into the Ecuadorian Pacific coast to the uplift of the Andes, with the formation of the Pebas Sea and its subsequent drainage to the northwest and west in the current basins of the Orinoco River and Amazon River respectively (after a small rise of the Vaupés arch of hills in the southwestern part of the Guianian shield which separated the waters of both basins and created the current white sands forests in the ancient beaches of the Pebas Sea). Additionally, this upheaval of the Andes in Colombia with its three mountain ranges (first the central one of volcanic origin due to subduction, then the western one due to subduction and finally the eastern one also due to folding due to subduction) and two inter-Andean valleys (product of pauses in the subduction of the Pacific plate under the Amazonian craton) divided the Amazonian fauna into a cis-Andean group (on the current side of the Amazon) and another trans-Andean (on the western side of the Andes and which includes the inter-Andean valleys of Cauca and Magdalena and the Colombian Caribbean coast) within what is today one of the most biodiverse areas on the planet: the biogeographic Chocó (in the Colombian-Ecuadorian Pacific). Many of the bird species that inhabit both sides are very similar after allopatric speciation. For example, the Amazonian Pteroglossus pluricinctus is very similar to the Pacific Pteroglossus torquatus. The same happens with Cephalopterus ornatus and penduliger from the Amazonian and Pacific side respectively. The list is huge and could give you many more examples if you decide to make a video on this topic that includes tectonic processes, orogeny of the Andes, origin of Amazon and Orinoquía, evolution of sister species of birds and an explanation of why Colombia is the country with the largest number of species of birds in the world. I have some nice articles about every item and never seen a video about it in youtube! PS: the epilogue of this story is the collision of Panama against Colombia creating the bridge that allowed the exchange of species between North and South America.