It's been the driest year in California in a long, long time. We've had the driest spring in the past 150 years, and while we've generally been enjoying the weather, paradise comes with a price. Water rationing has already started in Southern California, and the fear of wildfire is starting to ratchet up in Berkeley and Oakland, where empty lots still dot pricey hilltop neighborhoods -- lasting reminders of the devastating 1991 fires. So, what can we do about it?This year will be time for many of us in California to rethink our green, water-intensive grass lawns in favor of something that's green through and through. (Moss, perhaps?) We could also save a tremendous amount of water by switching over to dual-flush toilets and waterless urinals in homes and businesses across the state.