why bother changing the way we live?

For us to wait for legislation or technology to solve the problem of how we’re living our lives suggests we’re not really serious about changing — something our politicians cannot fail to notice. They will not move until we do. Indeed, to look to leaders and experts, to laws and money and grand schemes, to save us from our predicament represents precisely the sort of thinking — passive, delegated, dependent for solutions on specialists — that helped get us into this mess in the first place. It’s hard to believe that the same sort of thinking could now get us out of it.
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You begin to see that growing even a little of your own food is, as Wendell Berry pointed out 30 years ago, one of those solutions that, instead of begetting a new set of problems — the way “solutions” like ethanol or nuclear power inevitably do — actually beget other solutions, and not only of the kind that save carbon. Still more valuable are the habits of mind that growing a little of your own food can yield. You quickly learn that you need not be dependent on specialists to provide for yourself — that your body is still good for something and may actually be enlisted in its own support. If the experts are right, if both oil and time are running out, these are skills and habits of mind we’re all very soon going to need. We may also need the food. Could gardens provide it? Well, during World War II, victory gardens supplied as much as 40 percent of the produce Americans ate.

From this short article by Michael Pollan.