Agence France Presse: Governments negotiating a new climate change treaty, due next year, remain far apart on many issues, and this should be a "warning sign" that the world is facing trouble, a top UN environmental official said Tuesday. Talks in Bangkok earlier this month to thrash out firm commitments to battling global warming made little ground and this does not bode well for the 2009 meeting, Achim Steiner, executive director of the UN Environment Programme (UNEP), told …