Looks another witty self-promotion to me. It's not just the matter of coming together. Macro-economics is hard and has much far reaching impact than gimmicks of a coffee shop.
They should be able to write "ask us to start using recyclable / compostable cups" too.
P.S. Most Starbucks, even if they have recycling bins just throw them out (reason being if there seems to be any pieces that aren't supposed to be in there, they won't sort it out).
Paul Krugman has already ranted on this from a different angle: http://krugman.blogs.nytimes.com/2012/12/28/a-double-shot-of...