On Saturday the 29th of March Christchurch will mark "global earth hour" by switching its lights off for one hour.
A symbolic gesture at best.
But in reality of course this whole exercise will probably consume more electricity than if the lights were left burning for the entire hour.
At the end of "global earth hour" there will be a sudden demand for electricity as all those powered down devices power up, drawing more electricity than if they had been left on and creating problems for the suppliers.
Which leads to this next story - it may well turn out that the fifth Labour government's greatest contribution to the future prosperity of New Zealand's citizens will be an unreliable and expensive power system. Labour's equivalent of "think big" but in the long term by far more damaging to New Zealand than that ever was.
And of course the whole thing is based upon dodgy science in the first place.
But at least the penny seems to be slowly dropping in that regard.
This time last year I doubt the Dominion would have even conceded there was a debate over climate change, rather we would have been informed "the science is settled".
And talking of last year here is a prediction of mine from January 2nd 2007.