I can sympathize with people who are phobic about doomsday scenarios and, having emetophobia myself (phobia of vomiting), I know how debilitating these fears can be. I read that same article and did panic to a certain extent but not because I fear for the world's well-being, but because I fear illness. You should have seen me during the Swine Flu outrbreak, ha. Anyway, my best advice would have been to seek therapy but you've already mentioned that it wasn't helpful in the past. Are you on any kind of medication? I actually felt quite a bit better about my phobia while I was on SSRIs back in '09 and even when I got off of them, I still slightly improved until now, where my emetophobia is bad but not suffocatingly intense. The only other thing that REALLY curbs my fear, is keeping busy. Tons of free time really lends itself to those negative thought cycles. In the past, when I've been able to work, go to school and live in dorms with people, I almost didn't have the time or energy left to care about anything else which, while difficulty, was a pretty fair trade-off. Anyway, I do remember my therapist explicitly telling me not to go on internet search binges on things that scare me (you know, spending hours learning about how insanely viral Norovirus is) because they always led to heightened anxiety.