Being perceived as environmentally friendly is obviously a big issue for tech leaders. Consider Google’s recent pronouncement that making one cheeseburger used up as much energy as 15,000 Google (NSDQ: GOOG) searches, or Microsoft (NSDQ: MSFT) CEO Steve Ballmer’s recent, very-public purchase of a Ford Fusion Hybrid.

SEE ALSO: Google: Making One Cheeseburger Uses As Much Energy As 15,000 Web Searches

Now Greenpeace is offering its own ranking of tech CEOs. The grading takes into account emissions targets at their firms, alternative energy use, political advocacy, and the climate-change solutions their companies provide.

After the jump, how 12 top execs fared on Greenpeace’s scale of 100 points. As you’ll see, it’s not too impressed with the group. (It faults Microsoft, for instance, for setting “a relative emissions reductions goal” rather than an “absolute reduction target,” and says Sony (NYSE: SNE) needs to improve its alternative energy target.)