I was under the impression that blogs were a vehicle for expressing opinions, see Roger Pink's offerings. Instead, on here, they seem mainly to be a vehicle for people who have found some outlandish statement elsewhere to pose it as a serious question.
Generally, the question is unanswerable or, sometimes, the answer is yes and no and maybe. I'm thinking of titles such as, "Does Fracking Pollute Drinking Water?", there have been cases where it has, we had a case of tap water catching fire here in PA, but there are cases where it has not. A little research would provide the answer.
"Almost" Good Answers: