Allow me to quote the entire Divine Spells section of the Magic PDF.
"Clerics and druids, like their counterparts on other worlds, cast divine spells. Athasian rangers gain no special spellcasting ability, and there are no paladins on Athas. Unlike most campaign settings, Athas does not have any gods to grant spells. Instead, clerics forge a pact with a particular element, and draw their power from the elemental planes themselves. Druids are granted their powers directly from the spirits of the lands, while templars are gifted with spells from their sorcerer kings."
Nothing about the alignments of the elements themselves.