What is our part in solving a problem that is, by its nature, global?

Temperatures will hover in the mid-20s over the entire long weekend but people with breathing issues should be "vigilant" warns the bureau.

Back then, before Black Saturday, we were innocents in the bush.

Australia's huge bushfires are forecast to help drive global atmospheric levels of carbon dioxide to one of the fastest annual increases on record.

The Doomsday Clock has moved forward to 100 seconds to midnight - but this is a publicity stunt, not an actual scientific measurement.

Scott Morrison needs to raise Australia's long-term emissions targets to be aligned with Liberal states and conservative governments overseas, writes the director of the Grattan Institute’s energy program, a former executive at Origin Energy.

The threat of mass fish kills is emerging across the river system as ashy sludge with "the consistency of cake mix" moves downstream.

Australians are looking to the government to take national and global action to reduce greenhouse gas emissions and stop the terrifying advance of climate change.

Sydney and NSW's year included dust storms, diving dam levels, heatwaves, fish kills and the eruption of mega bushfires and incessant smoke haze.

Watering with a bucket forces you to choose which plants to save and which plants to kill.

Fausta, a female black rhino, died of natural causes while in a refuge in the Ngorongoro Crater.

A southerly wind change will bring cool air late on New Year's Eve and into the first morning of 2020.

Plastic microfibres from clothing have found their way into fish ... and into humans who eat fish.

Are sharks blood-crazed man-eaters, or more like curious dogs? Before you go back in the water, try looking at yourself through the eyes of a great white.

The pond will eventually re-fill but it will take years for the ecosystem to recover.