Did you know that Greenpeace broke a Facebook record this week? The international environmental organization got the most comments ever on a Facebook post in 24 hours–80,000! And that was after setting a goal of 50,000. The comments came in all different languages from around the world, all on Greenpeace's "Unfriend Coal" page.

Greenpeace launched the record-setting drive as a way to step up its pressure on Facebook. The company still relies on coal to power its data centers and some of its other operations, and Greenpeace has been calling on Facebook to go coal-free for more than a year. Now they're urging the social networking company to achieve that goal by Earth Day 2011 on April 22nd. Facebook, for its part, has been making efforts to change its data centers into cleaner, more green-friendly operations.

The "Unfriend Coal" campaign is ongoing, so you can check it out and see if you want to take part!