And a followup...

A comprehensive new study has concluded that recent global development has lead to a overall global decline in the sustainabililty of the world's ecosystems. For those playing at home - this means what has been good for granddad is going to be bad for grandson. This most comprehensive survey ever into the state of the planet concludes that human activities threaten the Earth's ability to sustain future generations, with fisheries and freshwater supplies already being pushed beyond sustainable levels.