 The change seems to be in accordance with the local anti-plastic ordinance. We are so excited about it. But Liz Accord with Alameda Public Works says it remains to be seen if the paper lids will actually break down in the compost stream. The compostability of that product would depend on whether it is fully biodegradable. Starbucks is also testing reusable coffee cups at nearby locations. Matt Bigler for CBS News, Alameda, California.