Only 3% of the World's Ecosystems Still in Pristine Conditions

According to a study, only 3% of the world's land is ecologically stable, with balanced populations of all of its original species and undisturbed habitat.

Prof. Pierre Ibisch of Germany's Eberswalde University for Sustainable Development, who was not involved in the report, said discovering only 3% of the land intact was "predictably catastrophic." "We need to give nature substantially more room to take humanity into the future," he said, "but I fear that reintroducing a few species in specific areas would not be a gamechanger."

The climate problem, according to Ibisch, was not taken into account in the study. "Aggravating climate change is now the overarching challenge to whole habitats' functionality. The intactness of yesterday's mammals doesn't tell us anything about the working habitats in the [global warming] age."

More than 50 countries pledged in January to conserve about a third of the Earth by 2030 to halt the natural environment's degradation. "It's important to put work into conserving these [intact] places," Plumptre said. "They are very unusual and unique, and they demonstrate what the planet was like before we had any significant effects, allowing us to assess how many we have lost."

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