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selenium contamination from canadian coal may threaten montana birds
according to a 2025 study of tree swallows, environmental selenium levels are rising in montana. industry across the border may play a role. keep reading
emma smith
new york university
contributoremma smith is a science/health journalist and adventurer. growing up in the pacific northwest, she developed a curiosity for the natural world. she writes about various ecosystems, their scientific processes and the animals that live within them. she is also passionate about covering the intersection between health and humans by bringing voices from marginalized communities into these stories. she has a b.a. in journalism from the university of montana.
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