The roof of the sludge concentration building at Chicago's Calumet Water Reclamation Plant collapsed at around 11 a.m. August 30. Ten people were hurt and successfully evacuated to area hospitals for treatment by the Chicago Fire Dept.

Twenty-eight projects totaling $38 million to support early stage R&D of innovative hydrogen and fuel cell technologies got boosts from the U.S. Dept. of Energy.

Wind technology costs and power prices are falling for land-based and offshore wind projects, according to three Energy Dept. reports released Aug. 23.

Juniper Research conducts regular studies on the progress of smart cities.

Under some scenarios, a new Trump administration proposal to reduce carbon emissions from power plants could curtail the construction of new natural gas combined-cycle power plants by as much as 30% and increase the use of existing coal plants by 13%, according to the Environmental Protection Agency’s own regulatory impact analysis on its proposal, the Affordable Clean Energy (ACE) rule.

One current and one former official of an Indiana iron workers' union local pleaded not guilty in federal court.

Nine commuter rail lines "at risk" of failing to reach Dec. 31 target.

Decision sorts out dueling environmentalist, industry challenges to 2015 EPA regulation.