Greetings from 35,000 feet! I am en route from my home in Grinnell, Iowa to Sydney, Australia to participate in a workshop on---oddly enough---environmental sustainability. Reducing negative environmental impacts is a current hot topic in my field of Human-Computer Interaction (HCI); indeed, so much so that I've seen at least one researcher (Bill Tomlinson of UC Irvine) reduce his carbon footprint by using iChat to remotely present a conference paper. Computing technology has a tremendous capacity both to make the problem worse and to help us make wiser choices.
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