This commentary argues that Canada's public and global health communities have a special ethical and political responsibility to act to reverse the harms associated with Canadian mining activities in Latin America and beyond through advocacy, research, and using their public voice. We begin with an overview of the direct and indirect health effects of mining, drawing especially on Latin America where 50-70% of mining activity involves Canadian companies. Then we examine the judicial, legislative, financial, and diplomatic contexts that make Canada such a welcome host and champion of the mining sector. Finally, we turn to the responsibility of the public and global health communities, offering concrete recommendations for using research, practical expertise public health solidarity networks, and political clout to speak out and advocate for policies that redress the harms caused by mining.