If you’ve changed your business and/or operational practices to reduce your carbon footprint, you should tell your customers about it. If you’ve changed your ingredients or manufacturing processes to be more environmentally friendly, you should take credit for it. But before you slap a green label on your product, consider this: While the benefits can be numerous, the potential pitfalls are equally so. Here are the pros and cons, and how you can make green labels work for – not against – your brand. By Matt Heinz