Large quantities of carbon dioxide are released during the production of building materials. With a new process, they could ...

Cement manufacture is a huge carbon emitter. A by-product of splitting seawater might make the process more environmentally friendly.

In Pasadena, The Gamble House was in a fire evacuation zone and its custodians are trying to safeguard its future. In Altadena, only concrete walls are left from the former home of novelist Zane Grey.