ONE could speculate as to the ecological footprint and greenhouse gas emissions generated by the 40,000 or more who are gathered at Sharm El-Sheikh in Egypt this week. How many airplanes did these 40,000 persons fill? How many of the participants in the 27th Conference of Parties (COP27) and its side events chose less polluting modes of transportation such as ship or train? Ajit Rajagopal, maybe the only person who walked to Sharm El-Sheikh, was arrested!