At the Time-Based Art Festival in Portland, from top: A collaboration by Seattleites Zoe Scofield and Juniper Shuey; Holcombe Waller; "Gatz" by Elevator Repair Service; and Nature Theater of Oklahoma...
The coal-fired Valmont Power Plant in Boulder, Colorado, will shut down at the end of 2017 to fulfill the state’s Clean Air-Clean Job Act, which requires utilities to reduce emissions. Similar EPA...