The week before last Evan from San Francisco watched our ‘Facebook: Unfriend Coal’ video and decided to send a Facebook message to Mark Zuckerberg – CEO and founder of the social network that has now surpassed 500 million users worldwide. Evan told Mark that he was concerned about Facebook's energy choices – more specifically its choice to use coal to power its new data centre in Oregon.

Only a few hours after Evan sent his message Mark Zuckerberg replied.

And that is why Facebook is such an amazing social platform. It really does let you connect and share with people – even the person who started it all.

Facebook has become a crucial space for dialogue - for spreading information, for showing your support for a cause, idea or message and a space for encouraging behaviour and policies that are in the public interest.

Recently Nestlé’s Facebook page played a key role in our online Kit Kat campaign (asking Nestlé to change their supply chain policies) because it provided a place for online supporters of the campaign - like you - to publicly voice your opposition to Nestlé policy. On Nestlé's Facebook page your concerns could be seen by anyone – and they were picked up by other concerned consumers, bloggers, journalists, and the food and drink industry itself. What happens on Facebook becomes important simply because of Facebook’s iconic social status – now surpassing Google for the average amount of time an individual spends using the site.

For all of the above reasons (and so many others) Facebook is important. And it’s growing. As Facebook grows, its energy appetite grows as well. That is what the ‘Facebook: Unfriend Coal’ campaign is about: ensuring Facebook grows on green, renewable energy. To do that Facebook needs to unfriend coal by announcing intentions to remove coal from the energy mix that is powering our profiles, our status updates, our photos, our Farmville games, etc. This is what Evan messaged Mark about last Thursday.

Thanks for sending that message, Evan. And thanks to all the others who have also voiced their concerns to Mark. All of your messages are important – because we all need to keep demanding a social network that is part of moving on from dirty, old coal and towards a green, renewable energy future. We need to ask Facebook to change its behaviour by changing its energy choices - and luckily it's also the perfect online platform for us to ask for that change.

Keep it up - ask Facebook to unfriend coal:
Share the campaign on Facebook
Share 'The So Coal Network' video
Join the campaign - and help us get Facebook in a relationship with renewable energy!

Watch the campaign video: