California's new composting law will affect what residents do in their kitchens. As of this week, Californians will have to recycle excess food in an effort to reduce emissions caused by food waste. Cities and counties will turn recycled food into compost or use it as a renewable energy source. California's new law is the largest mandatory residential food waste recycling program in the country. Rachel Wagoner, Director of the California Department of Resources, Recycling and Recovery called the law 'the biggest change to trash' since recycling started in the 1980s. She joined Cheddar Climate to discuss.