It's hard to do so when all your friends on FB are publishing news everywhere
The feature I use most on Faceache seems to be "ignore all from..."
I also tend to limit my exposure to news, partly because so much of the news is negative and partly because so much of it seems to be more opinion than fact. I can decide for myself what I think about the merits or otherwise of a political process, all I need is the facts of what is happening.
For me, if anything, if I do end up seeing a lot of news I end up with what used to be called "compassion fatigue". I really don't like to think of people suffering, especially when they did nothing to deserve it, but aside from a combination of prayers and maybe a financial donation it's not as if I can do anything about it.