Anyone with vertigo, look away now. This was taken a couple of hours ago, as climbers at the top of the chimney at Kingsnorth coal fired power plant finally went over the edge of the 200-odd metre high chimney. There's a knee-wobbling video of this moment on Moblog.
As I write, the climbers are still painting the side of the 200-odd metre high chimney. By first light, there'll be a message urging Gordon Brown not to give the green light to the first new coal fired power station to be built in the UK in over 30 years.
So far, two people - from the conveyor belt team - have been arrested, with the rest of the team likely to follow one by one (it's a slow business).
More updates to follow in the morning - in the meantime, here are a few of my favourite images from today: