MSNBC: Now here’s an unexpected beneficiary of the building consensus regarding global warming: the plaintiffs’ bar. Known to its detractors as Trial Lawyers, Inc., the plaintiffs’ bar makes serious bucks by launching mass tort and class action suits. The bigger the damages, the bigger the contingency fees, so high-profile harm is how these litigation firms make hay — and it doesn’t get much more high-profile than climate change. Companies are potentially vulnerable to shareholder …