Performance cuestión de ecología

Me encontré esto por ahí:

"... PHP developers really need to think about performance for not only scalability reasons but for green reasons. If programs were more efficient it would cut the number of data centres and would reduce energy needs as a result. In our newly emerging age of energy awareness this does become an important aspect and I am glad that he is raising awareness."

Luego esto lo había leido antes:

"Consuming twice as much RAM as Firefox and saturating the CPU with nearly six times as many execution threads, Microsoft's latest beta release of Internet Explorer 8 is in fact more demanding on your PC than Windows XP itself".

Microsoft no es ecológico.