I have created over 23 tonnes of CO2 emissions in the past year in flights alone. This is a violently disappointing number. This number makes all my composting, walking to work, and buying locally- grown/organic foods seem like a drop in the ocean. I don't know how I feel about buying my way out of this, but I can't seem to find any other solution. Carbon-offset purchase may be the only way to go at this time.