General & Others Never noticed this before, but the panels that show Old Wano show us the water level increasing

[Kyojin]

 

[Uncle Van]

Yeah many already concluded that Imu wiped out so many islands or an island so large 800 years ago, that it caused global flooding and rising sea levels.

 

[Aldarion]

Yeah many already concluded that Imu wiped out so many islands or an island so large 800 years ago, that it caused global flooding and rising sea levels.

Yep, and that is supported by how destruction of Lulusia also seems to have caused sea levels to rise.

 

[K!NG HARA$H!MA]

I wonder how many islands accidentally sinked even though there was no intention of harming it