We've had fake news world ending prophecies for centuries. But now we have exaggerated scientific scenarios to add to the list, so that we can get scared by asteroid impacts, nuclear war, runaway warming and so on. These are mixed with pseudoscience, and hoaxes, to the extent that it's often hard to figure out what is fake doomsday news, what is exaggerated, and what is the sober truth. It's easy to get a feeling of a doomsday helplessness. Yet we are far from helpless. These fake scenarios distract us from many real issues that we can do something about. Some vulnerable people, including teenagers, get so terrified by this fake doomsday news that they become suicidal. I've written many doomsday debunking articles, and have now published a new kindle book Doomsday Debunked.