Did you know that Facebook - the social network website that so many love and use everyday - uses coal - and nuclear energy to power their massive data centres - their warehouses of servers where all the personal information is stored?
With this Guinness world record attempt, Greenpeace International is going to show Facebook staff the huge global support for renewable energy - by setting a world record for the most Facebook comments on a post in just 24 hours!
Guinness World Records have confirmed that we need at least 50,000 comments on Facebook in 24hrs to set the record.
If you are a Facebook member, Click here, and leave as many comments as you like!
Click on Greenpeace International for all the details of this challenge.