Selain mengancam rumah orangutan Tapanuli, pemerhati lingkungan mengatakan PLTA Batang Toru berpotensi membuat ribuan warga kehilangan mata pencaharian, tingkatkan risiko bencana.
Tonggo Simangunsong is a journalist based in Medan city, North Sumatra. His work has appeared in VICE, the South China Morning Post, Al Jazeera, New Naratif and DestinAsian, covering environmental issues, culture, politics, life and travel.