Bloomberg: A wind farm in Marshalltown, Iowa.
For decades, alternative energy was the province of activists. It was far more expensive than fossil fuels, and many remained unconvinced of humanitys role in the globes rising temperature.
When world leaders gather in New York on Friday to sign the Paris climate accord, they will do so against a changing backdrop. As the cost of wind and solar power has plummeted, the solid consensus against alternative energy in the U.S. Republican Party has begun to crack....