[quote=@The Nexerus]
[@Theodorable] Are the 'Shape Land' and 'Shape Climate' actions only usable against white space, or can we undo the actions of other deities, e.g. plopping down a desert in someone's jungle or sinking a big island shaped by another god back into the sea?
[/quote]

It seems as though in this age you can't undo someone else's climate actions. Someone just plopped down a lake and was told they'd have to move it before the two compromised.