Employees say toxins at the Canadian Armed Forces base caused cancers, neurological disorders and other illnesses ...

Environment and Climate Change Canada officials admit accurately estimating methane emissions from oil and gas operations is a “challenge,” but they point to upcoming regulations meant to crack down ...

Two companies, Real Ice and Skyward Wildfire, say their geoengineering tech can help mitigate climate change. Does it work? Are there unforeseen risks?