I don't know if the citations therein are cherry-picked, but oddly enough it seemed like mostly what you might call "public intellectuals" on the "it's not so bad" side and lower-profile ordinary lab/field scientists on the "doom and gloom" side - a bit of a reversal from the usual trope
The premise is that current wild species are under severe duress due to changing environments, however nature is thriving in the age of extinction.
0. http://longnow.org/seminars/02018/jun/19/are-we-initiating-g...