[BTS] How to stop ice forming on Coast tiles

[King Victor I]

I want to alter the mod so ice does not form on coastal tiles. I want to be able to move all the way around the (pangaea) continent prior to ocean navigation. I have tried going into the Terrain/FeaturesInfo XML and:
- removed "coast" from the terrain booleans, ice still forms on coasts.
-set "coast" terrain boolean to 0, ice still forms on coasts.
-removed ice altogether, the game wouldn't load.
-defined ice as no longer impassable, the game wouldn't load.

 

[Nightinggale]

I think the answer is to modify the mapmaker script and comment out the code, which places the ice, or add the restriction that it will only do so on land. I don't think you can do it from xml alone.

 

[King Victor I]

Is there some kind of python tutorial that could help me figure that out?