But it is precisely the increasing use of air-conditioning in offices which helps to make the sector the fastest-growing energy-using part of the economy - faster even than motor vehicles. Writing as he does on behalf of the Association of Electricity Producers, it is in Mr Porter's members' interests to encourage as much fuel to be burnt as possible.
Thereby hangs part of the dilemma all governments face when trying to address the threat of climate change by reducing energy consumption.
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