> What about Colorado? Seems like a good place for agriculture.
Most of the parts of Colorado that are good for agriculture (e.g., not the Rockies) are already being used for agriculture. You can't really replace the area of California currently being used for agriculture with agriculture-suitable land in Colorado that isn't already being used for agriculture.
Does Colorado[1] really look like such a great place to grow crops? Particularly in the context of what we're talking about here, water availability, snowpack changes, etc. Also, Colorado via Drought Monitor[3].
Temperature (and, particularly for many crops, frequency and duration of freezes) is an important consideration in growing crops. Water is important, too, but its not the only consideration in agriculture.
