In San Francisco, no matter what neighborhood you live in, there is always a Farmers' Market close by. Even better, most of them are year round! I always like to support Farmers' Markets to both reduce my carbon footprint as well as to support local and organic farmers and growers. My local Farmers' Market is Fort Mason, which is a lovely 15 minute walk from my apartment. Keep the below list handy so you know when and where to stock up on your local organic produce. Which fruits and vegetables do you need to buy organic? Some are more toxic than others due to heavy pesticide use. Here is a list of the Dirty Dozen and the Clean 15.