Agency's inaugural carbon neutrality innovation challenge event attracts ideas to help buildings cut emissions 40% by 2030 from 2005 levels.

The Virginia Dept. of Transportation has given the go-ahead for work to begin on the $3.8-billion Hampton Roads Bridge-Tunnel Expansion project. 

Renewables producers charge in U.S. lawsuit that agency decisions keep them from U.S. power grid, but sector still sees battery storage growth and more manufacturers in supply chain.

A facility under construction will treat the same amount of wastewater but has upgrades for better seismic and flooding resilience.