While communications and technology solutions have the ability to drastically reduce costs associated with travel by simulating trips via conferencing - telepresence, etc... The reality is technology is also responsible for more and more energy use. Think about all the computers and consumer electronics devices in use today and you realize why you always seem to have too few outlets in your home and office.
A great trend I am seeing is the use of alternative power solutions to minimize energy use while still allowing communications and technology progress. Specifically, Ericsson and Telecom Italia rolled out a base station which was powered by solar energy. Obviously this is great news for wireless carriers and the environment.For more check out this video from the TMCnet Newsrooom