It doesn’t take a peer-reviewed study to tell you that if you blot out the sun, plants won’t grow and solar panels are going to stop functioning. Or if a mammoth asteroid unexpectedly hit the earth tomorrow, it would cause enormous destruction. Or if… you get the point. Doomsday scenarios are great as sci-fi pulp or to bolster ideological campaigns, but such musings offer no practical or public policy value, to science or to the general public. Outside of the realm of cartoon fantasy, the sun is not going to rise tomorrow and an asteroid is not going to smash into the earth. Read more.