So, some bright spark has decided that tomorrow shall be Lights Out London day.

I don't disagree with this in principle. It's a great idea to help the people of London see how much wasted electricity they use. From 9pm until 10pm tomorrow, all 'unnecessary' lighting should be turned off, and the capital should be plunged into darkness.

I am meant to be at a drinks event tomorrow evening on the top floor of the Gherkin, so this should be an interesting sight.*

But I've got two questions:

i. Why can't we just be encouraged to turn off non-essential lighting every day; and
ii. Why on earth would you encourage turning off the lights at 9pm on the longest day of the year?

I was in a very pleasant flat this evening, overlooking the Wharf and the skyline of London, and it was light until at least 9.45pm. So much for 'lights out London' - it's still partially daylight! The brain-child of someone whose internal lights are stuck on the dimmer switch?

* Shame I'm unlikely to attend since I'll almost certainly be stuck in work...