UC San Diego's Charles David Keeling Apartments go LEED Platinum. Photo courtesy of Tim Griffith.SAN DIEGO — The 516-bed, on-campus Charles David Keeling Apartments at UC San Diego have earned LEED Platinum certification for new construction. The building touts a large energy reduction through the use of ocean breezes instead of mechanical air conditioning. Rain water is recycled onsite, and a rooftop photovoltaic array produces renewable energy. The apartments were named in honor of the late Charles David Keeling, the scientist whose research at nearby Scripps Institute provided the earliest clues about global warming. The apartments opened in 2011. Kieran Timberlake was the architect.