A mining company says its coal expansion plans pose “no risk” to Sydney's drinking water.

A dispute has emerged over environmental monitoring at a Kakadu uranium mine.

Authorities are encouraging outback residents to be ready for La Niña.

Current regulations allow hundreds of tonnes of harmful heavy metals to pollute waterways in NSW, according to a new report.

Queensland's mighty Mary River has slowed to a trickle.

Coral populations on the Great Barrier Reef have halved in the past three decades.

A Tasmanian department appears to have launched an investigation into the treatment of seals that it approved.

The Bureau of Meteorology is warning of an increased risk of flooding this summer in the east and north of Australia.

A moratorium has been lifted, allowing Adelaide residents to drill new bores into the city's groundwater supplies.