Like I said, get your wallets out.

Quote from the UN about the cost of global warming.

$10bn to kick-start reaction'

Third, he said, it also must provide specifics on how rich nations will provide financial support on a short- and long-term basis for poorer countries to prepare for and adapt to climate change.

"To my mind, rich countries must put at least $10bn on the table in Copenhagen to kick-start immediate action," de Boer said.

"And they must list what each individual country will provide and how funds will be raised to deliver very large, stable and predictable finance into the future, without having to constantly re-negotiate the commitments every few years."

International climate negotiators have said they are now striving for a political agreement instead of a new treaty to allow the US and other rich nations to make commitments that are not legally binding.

And they think we are rich with $12 trillion in public debt and probabaly the same for personal debt.