The summit is almost upon us. World leaders will soon be meeting in Copenhagen to thrash out a successor to the Kyoto protocol.
While activists and negotiators prepare to make their way to Copenhagen, others are busy campaigning for a deal online. Almost 4 million "global citizens" have signed up to the pledge on the tck tck tck website:
I am ready for our leaders to sign a global deal in Copenhagen that is ambitious, fair and binding.
We'd also like Guardian readers to get involved online. In July, we invited readers to make their voices heard by uploading messages to our Message to Copenhagen Flickr group. The idea is to collect as many photos from Guardian readers and Flickr users as possible.
There is still time to share your thoughts. To participate, you simply need to take a photo of yourself holding your message and add it to the group.
Don't delay, upload yours today. We'll feature the best here on environmentguardian.co.uk and maybe in the print version of the Guardian too. Here are some of the submissions so far:
