The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. Fourteen cities were ...

One year after a deadly oil-rig explosion set off the worst offshore spill in U.S. history, the environmental minefield of abandoned wells in the Gulf of Mexico is worse than first thought, with no ...

Snaking beneath Regina’s streets are 600 kilometres of water mains built with asbestos-cement. Increasingly, some scientists and communities are questioning the wisdom in having drinking water flowing ...