Energy

The newer Colstrip units 3 and 4 will continue operating.

Both the new wind farms and the existing developments set to be improved are expected to provide energy for 30 years, Erickson said.

In 2018, daily ozone concentrations at the park exceeded acceptable levels more than 60 times.

Fossil fuel emissions have been cited by scientists as a major source of global warming.

The process involves cooling gas vapor to a liquid state.

A January meeting in Phoenix had been previously postponed.

Miller says the company anticipates beginning construction next year.

Mineral extraction employment grew 1.5 percent from last year. Related industries also increased.

Critics say taxpayer money is being used to prop up a failing project.

Cloud Peak owns the Antelope and Cordero Rojo mines in Wyoming and the Spring Creek mine in Montana.