by Jerry James Stone

Figuring out if your California wine is 'green' or not isn't a simple task. Distinguishing between red and white is easier. You almost need to be a wine maker or have a degree in viticulture.

The reason is, there are too many shades of green in wine making: biodynamic vs. organic vs. organically grown grapes.

But that's about to change. Today, officials from the industry-backed Wine Institute outlined what steps growers and winemakers must take in order to call themselves 'sustainable.' The regulations cover everything from energy consumption to water use. It even outlines health care for workers and relationships with neighbors.

California, which is the world's fourth-largest producer, will have two-thirds of its wineries participating in the program. But in the meantime, you can fill up at our favorite place for organic vino, Yield.