In the world of water politics, where change occurs at a glacial pace, the past few weeks have seen enormous swings in how our state’s most precious resource is managed and delivered. The discussions behind these changes are not easily known and even less easy to understand what they ultimately will mean for cities, farms and, yes, fish in California as climate change accelerates. What is apparent however is that Gov. Jerry Brown is working hard to put his delta tunnels project on the glide path to the finish line before he leaves office in January.