On a day when oil hit $139/barrel and I just paid $4.72/gal to fill my gas tank, this interview with Paul Marcoux by Chris Morrison offered some interesting perspectives on energy efficiency in the data center and where Cisco is going. As some of you may know, Paul, a founding member of The Green Grid, recently joined the Cisco Development Organization as the VP of Green Engineering, so he would know better than most. One of the things Paul points out is that you need good data to make good decisions. It is one of the things I have talked about in previous posts and you will continue to see efforts from Cisco on providing good data; however, as Paul points out, there is much oppty in this area on all fronts. Check out the interview–Paul has some interesting perspectives.