Dell digs greener tech Summary: From CES 2007: Chairman Michael Dell explains his company's plan to aid the greening of the planet through online customer donations to a tree-planting fund. January 10, 2007 -- 17:31 GMT (09:31 PST) Loading... Please wait. Topic: Dell Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.