The California Air Resource Board will have 18 months to develop a strategy for the state's cement sector to reach net-zero greenhouse emissions by 2045.
XL Construction announces that Eric Raff, co-founder and CEO, will step down as CEO and Richard Walker, president, will succeed him as chief executive in January.
Concern grows over "toxic air contaminants" released at city's mega wastewater plant, says the South Coast Air Quality Management District, after 17 million gal of untreated sewage was dumped into the Pacific when the system clogged.