Greenpeace will go to whatever lengths it takes to save this poorly climate of ours - we'll even take our pants off. Over the weekend, 700 volunteers posed nude in a French vineyard to send a message about climate change. The human art installation in the South of Burgundy was created by artist Spencer Tunick - to warn about the dangers of global warming.
Why bring grapes into it? Well, we have some bad news for those of you who enjoy the occasional verre de vin. French viticulture is feeling the pinch from a warming planet; this is an industry officially at risk. French viticulture is a climatically sensitive process and it's already suffering from summer heat waves, hail storms and the emergence of new diseases. It's estimated that vineyards will be displaced more than 1,000 km beyond their traditional boundaries by the end of this century if we don't put a lid on warming.

So what better reason to get your kit off with a bunch of strangers in the French countryside?

Greenpeace in France issued the following open letter to world leaders in conjunction with the activity.

Dear Obama, Merkel, Jintao, Lula, Sarkozy, Zapatero, Tusk, [Key ]etc.

  As you will have no doubt witnessed this year - tens of thousands of people are willing to go to some extraordinary lengths for climate action. Many are even willing to take their clothes off!

700 people have stripped naked in a vineyard to warn the world of the effects climate change will have on French wine. And a while ago, hundreds of others were prepared to pose nude on a glacier in Switzerland.

Around the world, people have made time to march, dance, create artwork, chain themselves overnight to coal installations in Svalbard, lock on to equipment in Canada's tar sands, get arrested for suspending a message to the G20 from a bridge in Pittsburgh, spend four months at sea away from their families to show again that the Arctic is melting, document glacial melt at the top of the Himalayas and carved a hundred ice statues in Beijing to show the threat to Asia's water supply.

Given the lengths to which we're all willing to go to call for action on this issue, do you think you could make some time in your busy calendar this December to show up in Copenhagen?

To date, only Gordon Brown (UK), Donald Tusk (Poland) and Jan Peter Balkenende (the Netherlands) have said they will attend.

We're not asking you to take your clothes off in Copenhagen - but we do expect you to be there - to sign a fair, ambitious and binding deal to save the future of our planet. A half-decent climate treaty simply wont do.

Thank you,