Astrophysicist had the perfect response to climate change denier

It's August and climate change deniers/trolls are clearly out and about, as a grim exchange between physicist Professor Brian Cox and climate change denier Malcom Roberts shows.  SEE ALSO: Physicist explaining climate change to a skeptic on TV is grim viewing Another astrophysicist had to face off trolls after she shared on Twitter her worries over the consequences of climate change:  Dr. Katherine J. Mack is based at the University of Melbourne and currently holds a Discovery Early Career Researcher Award (DECRA) on the topic: “Dark matter particle physics and the first sources of light in the universe.”  So she kind of knows what she's talking about. But clearly that wasn't enough for a particular guy:  To which Mack had this burning reply:  Twitter was all over the burn: Even J.K. Rowling bowed in homage to Mack's response:  And for those who are interested, this is Mack's full CV: