Google has announced that in 2017 100 percent of its power needs will come from renewable sources — wind and solar. That might not seem to be much but the size of the commitment comes into focus when one reads that Google is purchasing 2.6 gigawatts of power a year. That’s enough to keep a good-sized city running, and it is more than some US utilities produce annually. Google far outdistances any other user of renewable energy. The company’s action is an example of bold PR. It believes in global warming and it is determined to do something about it. What could be better than to run its gigantic servers on wind and solar. Google is featured often in this blog because it pursues a range of break-through PR activities that serve society. It is a role model for corporations.