The Leuser ecosystem spans 2.6m hectares into the Indonesian provinces of Aceh and North Sumatra. Itâs the only place in the world where tigers, orangutans, rhinos and elephants coexist in the wild. But itâs under threat from agricultural indust ...[
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They prevent $7 billion in health costs every year by filtering air pollution—not to mention their psychological effects. New research says the closer you can live to trees, the better off you are. ...[
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