The Earth Hour carbon calculator
Earth Hour has teamed up with Zerofootprint, a Canadian not-for-profit organisation, to provide two carbon calculators so that Earth Hour participants (and anyone else for that matter) to measure their carbon footprint and "make ongoing changes to their individual lifestyles in a bid to further reduce greenhouse gas emissions."
"The Zerofootprint calculator helps us ratchet up the whole Earth Hour initiative. It allows communities to set real achievable targets to reach our five per cent reduction goal and gives people a means of making and measuring changes," said Andy Ridley, Earth Hourâ€™s Executive Director.
There are two different carbon calculators people can choose from. One is an ordinary online form, similar to other carbon calculators. The other one is a Facebook application that will allow you to "mobilize and challenge your friends".