Governments have just a couple more days to agree real action on the environment. This is our last chance to act to cut carbon emissions and prevent catastrophic climate change.
That's why I'm going to the demonstration in London - the Copenhagen Wave - tomorrow. Simon Hughes is going, hundreds of Liberal Democrats are signed up and Liberal Youth and the Green Liberal Democrats have done fantastic work organising support.
Liberal Democrats have an unmatched record on the environment. In Parliament and in councils up and down the country, we've taken the lead on green energy, plans to insulate homes, schools and hospitals, and action to make polluters pay. At Copenhagen, we need a deal to make sure that greenhouse gas emissions peak no later than 2015.
So we need everyone who can to come and make their voices heard - putting pressure on governments round the world to step up to the mark.
All best wishes,
Leader of the Liberal Democrats