It is easy in a country like the UK to imagine that science and economics command the whole debate about nature's value. But step back and look at the bigger picture internationally, and it all looks rather different writes VICTOR ANDERSON
Investigative reporter, TOM FAWTHROP has just returned from the site of the Don Sahong - a hydrodam being constructed in the middle of an eco-paradise of wetlands in Southern Laos where over 200 fish species have been recorded.
Are they environmental doom-mongering, journalistic hype or the straw that breaks the camel's back? William Laurance examines the complexities of tipping points - those small changes in a natural system that can sometimes provoke sudden and irrevocable collapse