Environmental groups are cheering a decision in NSW's Land and Environment Court that found the emissions of greenhouse gases and resulting climate change from a proposed coal mine was among the reasons to reject the project.

Ten days out from the global climate summit, Australia is again acting like a handbrake. No other developed nation has performed as badly in terms of past emissions or commitments to cut them.

In the wake of last month's re-election of the Berejiklian government in NSW, prospects have brightened for a surprising narrowing of the gap between state and federal energy policy.

The sodden and cool tail of February belies the record-breaking summer, with autumn also likely to be unusually warm.

Thirteen otherwise healthy looking little penguins at the West Australian island died in 2011-12 and have now been found to be infected with a disease that originates from cat faeces.

The terms of Alcoa mining WA’s jarrah forest were decided when the scale of planned deforestation was tiny as was Perth’s population. Plenty has changed since then.

This week’s admission from a major Australian company could mark a turning point for Australians being misled while trying to do the right thing.

Solar awnings over car parks that are becoming compulsory in France and are under consideration in California could save emissions, water and lives in Australia.

Container deposit schemes are effective in reducing litter and enjoy community support. So why is Victoria the only mainland state not to have agreed to introduce one?

They are only starting to gain a foothold in the Australian market, but could batteries provide a near overnight solution to the energy woes that have hit South Australia and risk spreading east?