The price you pay to offset your flight is often a trade off between the location of the project and its efficiency in removing greenhouse gases from the atmosphere. A carbon offset project in the developing world can make more difference per dollar spent because it’s cheaper. On the other hand projects which have more benefits for the local community can also drive up the cost. We have worked out the cost for every airline carbon offset project in US dollars so you can compare them directly. As an alternative you could consider carbon offsets for your flight that use more efficient projects in the developing world or have more benefits for the local community and are QAS-certified. (link to QAS-approved page)