<p>A new organization will work to protect open space on the San Mateo County coast, starting with an effort to extend the boundaries of a local open space agency to the ocean, a coalition of conservation groups announced Monday.</p>
<p>The Committee for Green Foothills, Sierra Club, Surfrider Foundation and several other groups said they will combine forces through the Coastal Open Space Alliance, a new initiative to prevent Silicon Valley-style development on the coast.</p>