Toxic rare earth mining is poisoning the Mekong, threatening global food supplies

Key Points:

• Toxic runoff from unregulated rare earth mining in Myanmar and Laos is contaminating the Mekong River and its tributaries, threatening the health and livelihoods of 70 million people in mainland Southeast Asia who depend on the river for fishing and agriculture.
• Heavy metals like arsenic, mercury, lead, and cadmium found in the water and fish pose serious health risks, including cancer and organ failure, and jeopardize Thailand’s major food exports such as rice and fruits.
• Local responses in Thailand focus on monitoring pollution levels and educating communities, but government action is limited due to lack of leverage over mining activities in conflict-affected neighboring countries and resource constraints.
• The demand for rare earth elements, essential for modern technology and military equipment, is driving a mining boom despite environmental damage, with Myanmar as a key supplier to China amid ongoing civil conflict.
• Experts warn that toxic pollution from mining may be the most severe threat to the Mekong River basin, surpassing even the impacts of hydropower dams and other environmental pressures.