New satellite data reveals 513 rare-earth mining sites across six key tributaries of the Mekong, Salween, and Irrawaddy rivers in Myanmar.
According to the data, 40 new mining sites have opened this year alone, marking a significant increase from previous estimates.
The risk of transboundary river pollution is significantly higher than once thought.
The Stimson Center, a nonprofit think tank, published the data and analysis on Sept. 22, warning of unregulated mining operations in Myanmar affecting northern Thailand's Chiang Mai and Chiang Rai provinces.
Author's summary: Myanmar's rare earth mines threaten Thai rivers and communities.