The Indonesian government has revoked the permits of 28 companies over environmental violations that authorities say ...

A buildup of stress on faults in Sumatra is likely to trigger another large earthquake — and potentially another tsunami — in the Indian Ocean region, seismologists say. Researchers at the University ...

Best known as the home of the world’s rarest great ape, the mountainous Batang Toru forest landscape on the island of Sumatra has become a test case for whether Indonesia can enforce environmental law ...