Crossword puzzle clue "something an environmentalist might hug"

Something an environmentalist might hug

Like people in a group hug, presumably (and a group hug involving Tributes #7, #8, and #11)

Quality something has if you can put your arms around it (and a group hug involving tributes #4, #10, and #12)

Something that gets grabbed in a friendly competition (and a group hug involving Tributes #3, #5, and #9)

Kind of arena that might host the Hugger Games (and a group hug involving tributes #1, #2, and #6)

Environmentalist's concern

Yosemite environmentalist and photographer

Environmentalist's concern