Well, Buddhist, and Wiccan theologians are in a minority compared to Christian, Hindu, Deist and so on. And there is a spectrum of both Wiccan and Buddhist thought ranging from standard atheism + relevant cosmology to pretty clear Theism of various kinds (plus relevant cosmology.) Still, it's probably more common than among climatologists, depending on how strictly we define "theologian". (And "climatologist" for that matter, there are a good few fringe "climatologists" who push climate skepticism.)