SAN FRANCISCO – From the soaring cliffs of Big Sur to the teeming wetlands of Bolsa Chica, California has one of the world's most pristine and protected coasts, drawing millions of people each year to its sandy beaches and rugged shores. Conservationists say that's no accident – it's the result of a voter initiative passed more than 30 years ago that created the California Coastal Commission, the powerful government agency charged with protecting and restoring the state's 1,100-mile coastline. The California Supreme Court hears arguments Wednesday in a case that will determine the future of the commission, which has made...