Sir David Attenborough made a striking statement in his evidence to the Parliamentary committee. "Wasting Energy", he said, "is morally wrong".
He has a point. Even Lapland has no snow this year and it is now thought that 2006 was the warmest year on record. The evidence for a significant warming of the planet taking place is now substantial.
There is also increasing evidence that global warming is a man made phenomenon.
In nature, it is very rare to find waste- there are niches for life virtually everywhere on the planet. Therefore, the dumping of excess waste heat is bound to cause serious imbalances.
It is incumbent upon humanity to live our lives in a manner that respects the balance of nature.