Carbon Offset=Hypocrite

My supermarket is proud that they are eco-friendly because they offset CO2. Every time I see ads about it, I always think "why is this a good thing? Why can you be proud of doing such a thing?" Buying the right to emit CO2 from other countries? (Aeon specifically say that's what they do.) That hypocritical and self centered, if you ask me. Just sayin.