UN Study: Earth's Health Is Deteriorating

Unless nations adopt more eco-friendly policies, increased human demands for food, clean water and fuels could speed the disappearance of forests, fish and fresh water reserves and lead to more frequent disease outbreaks over the next 50 years, the U.N. report said.
http://www.sci-tech-today.com/story.xhtml?story_id=32024
Earth's ecosystem depleting at alarming rate: report
The damage to Earth’s resources by humans is taking place at a very fast rate, the Millennium Ecosystem Assessment (MA) Synthesis Report said. This damage can lead to shifts in regional climate, the emergence of new diseases, collapse of fisheries, sudden changes in water quality, and creation of ‘dead zones’ along coasts, said the report, which took into account data by 1300 experts from 95 countries.
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