Ok so let me get this straight

Question

wiccans are folks who worship nature and are usually called "tree huggers" and such. or called other things?

Answer 1

Wiccans do not worship nature.  We respect nature.  We worship gods.  Worshipping trees is silly.

"tree huggers" are overt environmentalists, which a Wiccan may or may not be.  The term has nothing to do with religious affiliation.