Centralizing computing is good, though. When you buy a PC, there is no real incentive for the manufacturer to care about efficiency. 200W vs. 300W is a few bucks a month for you and no bucks a month for them. So who cares.
But when one entity is running all the powerful computers, then shaving off a few watts makes someone a lot of money. So they'll do it.
As for the green issue... I think it's good that Greenpeace is reminding folks that just reducing the number of watts you use isn't enough. You need to get those watts from something renewable or clean; not coal. Otherwise you're still destroying the Earth... just not quite as quickly.
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Centralizing computing is good, though. When you buy a PC, there is no real incentive for the manufacturer to care about efficiency. 200W vs. 300W is a few bucks a month for you and no bucks a month for them. So who cares.
But when one entity is running all the powerful computers, then shaving off a few watts makes someone a lot of money. So they'll do it.
As for the green issue... I think it's good that Greenpeace is reminding folks that just reducing the number of watts you use isn't enough. You need to get those watts from something renewable or clean; not coal. Otherwise you're still destroying the Earth... just not quite as quickly.