Reducing the number of miles driven by Californians is a challenging goal given the state's car-centric transportation system and urban sprawl.

New Mexico regulators release a draft rule that would set CO2 limits for coal plants, raising questions about the future of the San Juan Generating Station.

A California study examines what it will take to encourage residents — and builders — to adopt heat pump appliances.

California regulators are fine-tuning a set of draft rules that would transition the state to 100% light-duty ZEV sales by 2035.

The California Air Resources Board’s draft climate change scoping plan faces criticism from environmentalists, fire victims and editorial pages.

Nevada regulators approved a permit for NV Energy to build a 220-MW battery storage system at the former site of the Reid Gardner coal-fired plant.

Several Western states pursue initiatives that could support the Biden administration's goal of expanding community solar capacity to 20 GW by 2025.

The governments of California and New Zealand agreed to work together on climate issues such as transportation electrification and climate-smart agriculture.

FERC issued PacifiCorp permits to study the feasibility of developing pumped hydro storage projects in Southern Ore., located near a major intertie with Calif.

A price increase for certain Tesla models has made them ineligible for Calif.’s clean vehicle rebate incentives, potentially slashing demand for the incentive.