Our four climbers have spent the night in sub-zero temperatures, hanging off the bottom of Cairn's Arctic oil rig - the Stena Don. While we're attached to the rig, Cairn Energy can't continue their reckless drilling.
For live updates visit www.GoBeyondOil.org
Here's a video of how they scaled up the legs of the rig, followed by a quick interview with Sim - from the US - talking about why they're there.
Sleeping in tiny tents suspended from the rig, Sim is joined by Timo from Finland, Mateusz from Poland, and Jens from Germany and they've taken enough food with them to last a few days. The hope is that if they can hang on long enough, Cairn will miss the summer drilling window, and have to wait until next year when the sheet ice melts again.
But the situation is still tense. We're getting reports that a second Danish navy warship is heading to the area and the police have already used hooks to tear one of the banners off them.
We're in contact with the climbers and will let you know the latest as it happens. While they're still hanging in there, listen to Sim talking about why he became an activist and why although he doesn't want to get arrested, sometimes you have to take action.
