But these shades are not mixed on a palette, they are unfiltered snapshots of San Francisco Bay’s salt ponds. Barbara BoissevainAlthough perhaps less photogenic, the shift is a positive sign, says Dave Halsing, executive project manager of the South Bay Salt Ponds Restoration Project. Today, Cargill still operates 12,000 acres of salt ponds, capable of crystallizing half a million tons of sea salt each year. She remembers visiting the salt ponds for the first time during a science class in third grade. She started by going up in the air once a year to photograph the salt ponds.

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Persons: CNN — Barbara Boissevain’s, Mark Rothko, Dunaliella, Barbara Boissevain, Dave Halsing, ”, Boissevain, “, David Maisel Organizations: CNN, Cargill, Menlo Park, Meta, Facebook, Kehrer Verlag, San Jose State University Locations: Francisco, Salt, Manhattan, Dunaliella salina, Silicon, Menlo, Ravenswood Ponds