The San Francisco Bay is our region’s dominant geographic feature.
Every day, millions of people drive over it on a half dozen bridges. Ferries and freighters cross it. Windsurfers and kayakers and boaters ply its waters. It's the picture-postcard backdrop for thousands of tourists along the San Francisco waterfront. And yet much of the real action in San Francisco Bay is hidden from us beneath murky waters. A new plan aims to change that...
This flooded island has become a surprising refuge for endangered Delta smelt, which have ended up living here full time, much to the surprise of biologists. But an invading exotic plant threatens that success, unless land managers can make some changes to tilt the game back in the smelt’s favor.
This map covers the entire Sacramento-San Joaquin Delta, showing protected areas, water conveyance systems, subsided areas (below sea level), and water salinity gradient.
Superhighways stay out of the Delta, mostly. But if you have ever driven on Interstate 5 south of Stockton, you have just grazed one of the southernmost Delta islands, Stewart Tract. Filling the angle between the San Joaquin River and Paradise Cut, one of that river's lesser branches, it is also at the intersection of two specifically South Delta concerns: urbanization and flood control.
The Delta’s westernmost island, which shields major water-export pumps from incoming saltwater, is a testing ground for several efforts to prepare this fragile region for the threats of sea level rise and levee degradation.
The great rafts of ducks on San Francisco and Tomales bays, mostly surf scoter, greater and lesser scaup, and canvasback, are a wintertime spectacle. Scoter flocks can range from many hundreds to a few thousand birds. Why do they form these aggregations?
Winter might not be beach season for most of us, but for big wave surfers, now is the time to be out on the water. What makes winter the time for big waves? And why do a few spots, like Mavericks, get such tall waves?
On a hot July afternoon last year, UC Davis graduate students Alpa Wintzer and Mariah Meek dipped glass jars and nets into Suisun Slough at Suisun City's public dock in Solano County. They were capturing small gelatinous creatures that look and act like jellyfish. These jelly look-alikes seemed to be everywhere and are beautiful to watch. But they're also a problem...
Kids take the Creek Seeker Express to Martinez to learn about the creeks that run through our neighborhoods, while a new juried exhibit shows off designers' ideas for confronting sea level rise.
Independent, nonprofit environmental journalism connecting people with nature in the San Francisco Bay Area.
