Thousands of people will be streaming through Copenhagen airport as they arrive for the two weeks of international climate treaty talks that kick off on Monday, Dec. 7th.

Greeting travelers at the airport will be large billboard advertisements with the digitally aged faces of world leaders, like US President Barack Obama and French President Nicolas Sarkosy, apologizing for not delivering a strong deal at the Copenhagen treaty talks.

The caption reads, "I'm sorry we could have stopped catastrophic climate change... we didn't."

Created by our partners at Greenpeace, the ads are entertaining and eye-catching, but send a very strong message to world leaders that they probably don't want to be sitting in their rocking chairs 20 years from now regretting the fact that they had the chance to take bold leadership on climate change, but failed to do so.

“If leaders like Obama, Sarkozy, Merkel and Brown don’t deliver at this summit their legacy will be mass starvation, mass migration and mass famine. If that happens sorry might be the hardest word, but it won’t be enough,” says Kumi Naidoo, Executive Director of Greenpeace International and Chairman of tcktcktck.org. “Now is the time to act on climate in order to save our future. Not next year - and not the year after. If we want to have any chance of stopping climate chaos, global emissions must peak by 2015.”

Well said.

Tags: Campaign stories | climate change copenhagen | copenhagen climate talks | UNFCCC