<p>San Francisco has set itself the ambitious challenge of recycling 100% of its waste by 2020. The goal is to avoid using both landfills and incinerators, which produce a great deal of greenhouse gas emissions. As our correspondents report, the policy is already proving beneficial, with new jobs, less airborne pollution and the production of a high-quality compost used in local farms.</p><br />A programme prepared by Patrick Lovett and Aline Schmidt<br /><br />Visit our website:<br />http://www.france24.com<br /><br />Like us on Facebook:<br />https://www.facebook.com/FRANCE24.English<br /><br />Follow us on Twitter:<br />https://twitter.com/France24_en