Prince Charles gives the planet only seven years:

Speaking at the opening ceremony of the ministerial segment of the Copenhagen climate conference, the Prince said the “survival of the species” was in peril.
The talks have been dogged by walk-outs and protests as the poor world becomes increasingly frustrated at the lack of refusal by richer countries to cut greenhouse gas emissions.
Yesterday Yvo de Boer, the head of negotiations, admitted things are moving “too slowly” as pressure grew on the world’s two biggest emitters China and the US to compromise over cutting carbon emissions and committing money to climate change.
Prince Charles said world leaders owe it to “our children and grand children” to make a difference.
“The future of mankind can be assured only if we rediscover ways in which to live as a part of nature, not apart from her,” he said. “The grim reality is that our planet has reached a point of crisis and we have only seven years before we lose the levers of control.”
He pointed out that climate change is a “risk multiplier”.
“Reducing poverty, increasing food production, combating terrorism and sustaining economic development are all vital priorities, but it is increasingly clear how rapid climate change will make them even more difficult to address,” he warned.
The Prince, who flew in by private jet, joined Arnold Schwarzenegger the Governor of California and Al Gore, the former US Senator, who also flew in to add impetus to the talks.