Do you remember learning about Victory Gardens in school? You probably know that these were vegetable and herb gardens planted by everyday citizens in homes and public spaces during World War I and World War II.
Why not try your hand at growing some of your favorite vegetables? You can start small and have some pots filled with tomato and pepper plants, or some herbs like mint and oregano. You will have the satisfaction of eating fresh produce and you will know exactly what chemicals were used in its growing. Not to mention, you will eliminate the need for transportation to a grocery store which puts lots of carbon into the environment.
Already a master gardener? Why not encourage your neighbors to grow some greens and share your produce? Or, think bigger and participate in or start your own local co-op.