The Prime Minister announced that the two renewable energy agencies could now invest in 'low emissions' technologies, such as gas, rather than focus entirely on renewables.

The fate of a 50-year-old national park in western NSW is "at the mercy of water managers", as the battle for the Murray-Darling Basin hots up.

The possibilities of quantum computers are much-hyped but even the search for breakthroughs promises lucrative spin-offs.

They said it would never fill. Now it has spilled.

A wildflower superbloom is underway in a Californian desert after seven inches of winter rain.

More frequent severe droughts, coral bleaching are on the agenda with more extreme El Nino events predicted even with ambitious climate goals.

In the high country, there are echoes of old and bitter disputes over land, culture and identity.

Sydneysiders look set for a soggy commute to end the working week, as an intense low pressure system off the coast delivers widespread showers, wind and large and powerful surf conditions to the city.

Sydney is in for gusty winds on Wednesday, followed by chilly temperatures next week as Winter makes itself known.

Tasmanian devils with tumours the size of golf balls have had their cancerous growths disappear, after scientists successfully trialled a new way to kick-start the animals' immune system.