Part of the code of ethics used by the organizers of the <span>International Tourism Trade show in Berlin was the offer to the participants to compensate for their carbon dioxide production by donating. Another part of their code of ethics was the attempt to minimize the use of paper to the absolute minimum and the use of shared cars for the transport rather than each user hiring a taxi separately</span>
The real question is who bought the pen?
It would be the Scientific method.<span />
