Enviros don't recognize "hard scientific facts".
It's against their religion.
Ain't THAT the truth. I was in college studying chemistry when the enviro movement was just getting started. I got my PhD during the days when the EPA was being established. Over the years, I have seen the eco-fanatics "gin up" one tempest in a teapot after another, based on hot air and echo-chamber science (actually non-science) using exactly the same methods seen here.
And yet quite a few folks here uncritically suck up the ideas that have their underlay directly from the lies and exaggerations of the eco-nuts, and attack those few of us who actually check out the hard science involved.