 At this Starbucks east of San Francisco, the plastic dome lids that usually top cold beverages are now white. This customer was happy to see the new compostable cups. I think that's a good idea. It's better for the environment. 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.