December 20, 2013, 12pm PST
In case you haven't heard, L.A. gets a lot of sun. While this is great for getting a tan, it presents a challenge for mitigating the heat island effect and rising temperatures. New legislation requires that the roofs of new homes help beat the heat.
October 4, 2012, 6am PDT
Study suggests that light-colored roofs may reduce regional rainfall.