Rather than buying new, “greener” PCs en masse, suggests Mr Esser, companies should adopt a greener sourcing policy. That way, they can ensure that any new computers they buy meet more stringent environmental criteria, but that existing machines are only replaced when they come to the end of their working lives. One reason for the relatively high green cost of PCs, Mr Esser points out, is their relatively short working life. Taking this into account can make desktop computers greener than laptops, as laptops are harder to upgrade and tend to be replaced more often.
