Carbon “offsets” are just another tax scheme. If the climate critics are that concerned they would be setting the example by walking or bicycling, not working in an air conditioned office, take a sail boat or row themselves across the Atlantic, among plenty of other things that supposedly don’t emit carbon. Until then I will continue to drive to the airport in my comfortable full size Hemi powered pickup, to fly a client to their destination, in their own private jet or a charter!