Beeb environmental analyst Roger Harrabin on the key parts of the informal climate deal reached that will go to the G8 this summer -- and may form the basis of Kyoto II.
The statement from the Global Legislators Organisation for a Balanced Environment (Globe) forum brings together Americans, Chinese, Indians, Brazilians, Canadians and Europeans into a surprising agreement about the way ahead.
It has no government authority. But it will be sent to the meeting of G8 world leaders, so it is significant.
It has three main planks - firstly, an agreement that all countries had to face targets to cut greenhouse gas emissions.
It has been a major bone of contention in the United States that China and India do not have targets at the moment - so that is useful.
American shift
Secondly, it urges the G8 to set a very aggressive timetable for a deal to replace the Kyoto protocol when the first period ends in 2012.
Talks should be launched at the UN meeting in Bali in November and concluded by 2009. This is very ambitious.
Thirdly, it demands world leaders agree to a top limit beyond which carbon dioxide emissions should not go - between 450 and 550 parts per million.
That is far too high for the German G8 adviser here - he says it is reckless. But at least it would be a limit where none exists now.
Actually, some say 450 parts per million is is a maximum and would allow global warming of about 2 degrees Celsius, which is the bottom end of dangerous. The Earth's atmosphere is current around 380 ppm.