How does DNA make a decision?
The lineages of every other non-extinct species have adapted to their environment satisfactorily enough to still be around.
Favorable climate conditions and other factors such as the cooking of food has contributed to the greater time our species has had for thinking, too. And I don't know what you mean by "accelerated evolving". If we are smart enough to adapt to different environments with our brains, that LESSENS the potential for evolution, since we mitigate the need for physical changes to the genome to adapt to the new environment.