So our old lettuces and products that we have thrown out that are made out of biodegradable materials, if they end up in landfill, contribute to climate change.
所以那些我们扔掉的 变黄的生菜和其他产品 本来源于可生物降解的材料， 但如果它们最终进了垃圾填埋场， 则会加重气候变化。