Meet two women who have fought valiantly to have New Hope Group's $900 million expansion of a coal mine on the Darling Downs go ahead, despite conservationists.

You're more likely to hear Sydneysiders talking about traffic or property prices than water. Memories of the millennial drought have faded as our reservoirs have filled with years of above-average rainfall. But this period of water wealth should not delude us. It will not last forever.

The $13 bln Murray-Darling Basin Plan was at a 'critical moment' as Labor senators joined the Greens to block a move to cut environment water.

An old timber bridge built before the 1860s under what is now known as Kingsford Smith Drive has been uncovered during a $650 million road-widening project.

Balloons are now recognised as one of the top three threats to marine wildlife.

Balloons are now recognised as one of the top three threats to marine wildlife.

The eruption of pine bark beetles that has devastated forests in North America is an example of surprises from climate change, says NASA's Gavin Schmidt.

The Turnbull government has opted out of an international pact to protect three species of threatened sharks, drawing accusations that it was undermining global conservation efforts.

The Berejiklian government continues to withhold data on how much land has been cleared, particularly since its overhaul of native vegetation protection laws.

A long hot, dry spell in the Hunter Valley is transforming the region.

A long hot, dry spell in the Hunter Valley is transforming the region.

People tend to delay preparations to defend themselves or confirm the need to leave ahead of a bushfire until they can observe the blaze directly,

People tend to delay preparations to defend themselves or confirm the need to leave ahead of a bushfire until they can observe the blaze directly,

A precinct encompassing the Shrine of Remembrance and Domain Parklands joins the Sydney Harbour Bridge, Uluru and the MCG on the National Heritage List.

A precinct encompassing the Shrine of Remembrance and Domain Parklands joins the Sydney Harbour Bridge, Uluru and the MCG on the National Heritage List.

This is an opportunity for sporting codes to show leadership around climate change and its potential effects.

This is an opportunity for sporting codes to show leadership around climate change and its potential effects.

The NSW Planning Commission has given the go-ahead to a mine extension in the Blue Mountains that has environmentalists fuming.

New construction codes could make a difference in lifting Australia's poor energy standards for homes.

Sixteen horses from a NSW polo club died on their way home from a Tasmanian polo tournament.

Queensland's top tourist destinations are under threat from climate change, according to the latest report from the Climate Council.

The humble Australian magpie is the star of new research that suggests social interaction is key to the development and evolution of intelligence in animals.

Only a quarter of the 20,000 "ravenous" kingfish that escaped from a fish farm off Port Stephens last month have been caught.

The rooftops of Canberra's CBD could yield power for up to 13,000 homes if businesses installed solar panels, a new study has claimed.

Solar energy approvals are accelerating and this year will likely see total capacity surge at an unprecedented rate in NSW and the country as a whole.