"Final Warning" "act now or it's too late" sounds like a late-night infomercial selling me something.

If I were running the report I'd try to write it in a manner that is scientific and thus emotionally indifferent to every outcome. Science doesn't care whether any special dies or not (humans or not). If you can't look at climate science with an indifference to the death of the species, you probably can't run statistics neutrally, which gives a lot of room for doubt (fair or not).