eWeek: A new Greenpeace report questions the degree to which the Apple iPad, and devices that similarly rely on cloud computing, are contributing to global warming. It also calls on IT leaders such as Facebook, Google and Microsoft to be drivers of critical climate-change goals. A March 30 report from Greenpeace aligns the Apple iPad with global warming, as the original green company seeks to raise new questions about the environmental effects of cloud computing. The term suggests a …