If it's any consolation, positive events are under-reported in the news since it isn't seen as newsworthy. This actually can fuel right-wing political projects. It's very easy to publish stories about violence and crime. But then you look at the statistics and crime has been steadily falling for decades. I almost certain this doesn't apply to the news you are referring to as depressing, but it's something to keep in mind. At least to maintain perspective.
