What does it take to create a new climate? Is it possible?

[Muizer]

That is one mighty piece of work, Muizer! I don't really know enough about battlemap files to follow all of it - you said it includes how to change the colour of the ground in the distance? Could you point me in the direction of the section of your tute that lets you do that?

Yeah it is mentioned as an aside really, with most of the guide focusing on the distribution in space of colours textures and small scale relief.

In any case, read the section on setting up a hex editor for editing descr_geography.db and the section on editing values.
Open descr_geography.db. In it, following each of the pathnames that point to a texture (such as "sand, rock" etc.) there's a block of 3 numbers in byte format detailing the corresponding BlueGreenRed code.

MZR