San Francisco Chronicle: Republican eminence grise George Shultz addressed a packed room on Capitol Hill Friday to press for a carbon tax.
A Californian now at the conservative Hoover Institution at Stanford University, Shultz taught economics at the University of Chicago and is one of just two people ever to hold four Cabinet posts.
Bucking his party on climate change, Shultz said all forms of energy should compete "on a level playing field" by incorporating the cost of their carbon pollution.
Once carbon pollution...