Global ecosystems 'face collapse'

  BBC News

  Oct. 24, 2006 -- Current global consumption levels could result in a large-scale ecosystem collapse by the middle of the century, environmental group WWF has warned.

  Terrestrial species had declined by 31% between 1970-2003, the findings showed.

  It warned that if demand continued at the current rate, two planets would be needed to meet global demand by 2050.

  The biodiversity loss was a result of resources being consumed faster than the planet could replace them, the authors said.

  They added that if the world's population shared the UK's lifestyle, three planets would be needed to support their needs.

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