71 How could a natural road form across a sea? 2018-01-10T20:39:45.790

38 Using international waters to avoid legal punishment 2014-12-24T17:36:06.527

37 How could pirates reasonably transport dinosaurs in captivity, some of them enormous, across oceans? 2019-12-02T22:46:32.623

34 What could cause humanity to migrate from land to water? 2016-11-14T10:33:28.967

27 What if the ocean's salt level decreased by 50%? 2016-08-07T14:29:24.327

25 What if the seas had fresh water in them? 2015-04-22T13:41:46.840

25 How much would it cost to recreate Doggerland as it existed before 16,000 BC? 2015-09-21T16:12:52.277

25 If the Black Sea was disconnected from the Mediterranean, how long would it take to become freshwater? 2018-05-11T00:46:52.610

21 Is this coral lagoon geologically possible? 2018-01-09T19:50:31.130

17 Is It Possible to Have Different Sea Levels, Eventually Causing New Landforms to Appear? 2019-09-18T17:46:37.980

15 Creating a realistic world - Thermohaline circulation 2015-09-15T17:16:55.990

15 Would a Roman civilization be willing and capable of building large scale sea defences against a serious but unrealised flood threat? 2017-10-18T19:29:14.047

14 Natural pearl factory 2018-03-08T14:43:04.030

13 Shallow sea world - plausable geology? 2014-11-20T16:38:14.357

13 Planet with a surface area that’s 90% water or more? 2019-09-03T04:35:04.300

12 What would happen at the core of a water world? 2016-09-04T21:35:50.797

8 Corrosive oceans and seas - how would this affect our world? 2015-09-01T21:10:52.397

8 How do the tides work when the sun powers the moon to keep out evil? 2016-11-21T03:07:38.073

8 Archipelago worlds build up atmospheric oxygen faster? 2019-07-05T03:11:12.203

7 Can I have a beach of pearls? 2018-03-08T11:44:37.600

6 HELP! Stuck on a small island with only rum 2015-09-21T03:37:33.293

6 What would a receding seabed provide for human civilization? 2016-05-25T21:39:51.137

6 Sea Travel Variables 2017-01-13T05:08:27.557

6 Ecological implications of osmotic portals 2019-07-27T11:12:13.070

5 How would a world with an extremely high water level and only a small land mass differ from Earth? 2015-08-30T22:40:45.313

5 Bay evaporated by a volcano 2015-12-09T22:59:04.377

5 How big of a tidal wave could 2 binary planets create 2016-07-17T18:54:41.893

5 Make humans digest salt water? 2016-08-10T08:19:03.873

5 What would be the consequences of humanity migrating from land to water? 2016-11-14T11:17:07.417

5 Shapeshifting an individual's physiology for environment (Space Whale) 2017-02-23T01:56:13.563

5 Any stealthy methods of tracking vessels at sea before advent of RADAR? 2018-01-04T22:36:17.720

5 Replace sea salt with sugar, what happens? 2018-06-15T19:10:51.197

5 How would a supernaturally heated caldera bay affect the local climate? 2019-06-29T02:06:29.100

4 If we connect a ship directly to a person, would the person be the master of the vessel? 2015-04-13T16:29:13.480

4 What would happen to the ocean when lowering atmospheric density? 2015-06-17T04:39:48.460

4 What 17th century technology can the people use to hunt a sea monster? 2015-10-27T08:01:32.547

4 How to have a tribe measure the tides while living under the sea? 2016-04-26T22:48:04.223

4 What are the effects of building an artificial land bridge connecting Britain to Europe? 2017-02-18T20:03:52.813

4 Growing seaweeds on lakes and seas in tundra-like biome 2019-04-20T11:28:49.693

4 Elevated island 2019-11-13T23:16:52.420

3 What could totally submerge a city without causing too much damage? 2016-04-13T19:23:04.453

3 Could nuclear fallout melt the ice caps and cause an accelerated sea level rise? 2016-07-11T18:39:48.893

3 What would the climate/environments be like on a planet covered in small crater lakes and seas? 2019-04-26T17:02:45.617

3 How much land disappearing would it take to drop the sea level by 10 meters (30ft)? 2019-04-26T18:02:15.693

3 Can a river or something flow between two or more planets or celestial bodies in close proximity? 2020-01-27T09:43:11.780

2 Animals migrating north from Africa after meteor hit Earth - era of 'ice' 2016-04-22T14:20:38.003

2 What would be the consequence of higher oxygen level in water 2016-06-05T15:36:27.627

2 The Tethys Salinity Crisis 2016-09-22T03:49:47.500

2 Largest sailing vessel manned by 2 people 2019-06-13T23:50:35.790

1 Cordoning Corrosive Ocean 2015-06-18T04:28:40.783

1 Can a river or a sea made of gas exist ? A sea of clouds to sail it 2015-07-14T14:51:19.223

1 The Neo-Tethys Sea, in Full 2016-01-28T16:53:40.343

1 Edestus Gigantus In modern oceans 2016-08-07T21:46:21.547

1 Would we solve oceans rising problem by destoying the Moon? 2016-09-02T09:35:04.733

1 How does a herbivorous mermaid species without gills and swim bladder stay underwater its entire life? 2016-10-29T00:46:00.220

1 The Tethys Renewed: Where Cold Meets Warm? 2016-12-03T01:55:01.967

1 Repercussions of floating nuclear power station going into meltdown? 2018-08-04T15:27:38.363

1 What would a sea made of Iodine look like? 2018-11-15T16:53:36.403

1 Massive naval cannons on age of sail ships? 2019-12-18T17:31:02.427

0 What armor for my giant slug species to do battle at sea? 2019-03-04T09:59:43.687

-1 World underwater: technical viability 2019-06-08T07:55:01.257