Top 10 eco gadgets for executives

9 Telepresence
For offices with a host of frequent fliers, one way to cut travel -- and its associated costs and emissions -- is videoconferencing. HSBC's already taken the leap and is seeing its spending drop accordingly.

Today's top-end videoconferencing products are all about recreating a facsimile of a meeting, with spatial audio and large screens to make you feel like your co-meeting attendees are actually there in person.

A green meeting option it is, but not necessarily a cheap one: Cisco's TelePresence units, shown here, range from tens of thousands of dollars for the lower end model to hundreds of thousands for the most expensive.