Stakeholders said cutting greenhouse gases from transportation will be more complex than power plants.
More ambitious targets and other reforms spurred higher auction prices and more money for efficiency programs.
Dozens of signatories argue that state regulators have a constitutional duty to address climate change.
The initiative is expected to create new revenue for renewable energy and climate change resilience projects.
The following is an excerpt from Designing Climate Solutions: A Policy Guide for Low-Carbon Energy by Hal Harvey with Robbie Orvis and Jeffrey Rissman.