Thousands have abandoned their homes in northern NSW and hundreds of people rescued from floodwaters as the remnants of ex-tropical cyclone Debbie bore down, dumping a staggering amount of rain on the region.
Human societies and a multitude of species are going to be tested by climate change in ways that are barely understood, a new study finds.
If you're wondering why battery storage is still on the fringe of the energy debate in Australia, and also perhaps why power prices are high, just ask Tony Marxsen, the head of the country's energy markets.
The world is 33 months into its biggest recorded coral bleaching event with little sign of it ending, raising the prospect that coral mortality on the Great Barrier Reef will increase "significantly" from the quarter already lost in the past year, scientists say.
What if the biggest government announcement in electricity generation in years was both a great breakthrough and a distraction?
Two resignations from the board of the Climate Change Authority come with criticism of the Turnbull government.
Australia's original climate change-focused think-tank and lobby group will shut after it failed to replace the multi-million-dollar bequest it relied on.
As parts of Australia set heatwave records and the government considered building new coal-fired power stations, the vast continent to the south last week quietly marked a milestone.
After years of failed promises, Victoria is on the cusp of getting its first large-scale solar power stations.
Less than one dollar in a thousand spent on health in Australia goes to one of the biggest threats facing the sector, a new paper finds.
The creation of a long-mooted national park on Melbourne's fringe could create up to 750 jobs by turning the area into an eco-tourism hub, an analysis has found.
Sydney has marked its hottest ever month, with extended warm spells setting records at all metropolitan sites.
Victoria and NSW have been warned they could follow South Australia in being hit by electricity blackouts in years ahead unless Canberra comes up with a bipartisan national plan to deal with energy and climate change.
Energy giant lodges its long-delayed application to develop the controversial Narrabri coal seam gas project.
Claims of a cover-up as a plant lost for two centuries turns up on a development site.
Coal mining in Sydney's water catchment could prove an early test for new Premier Gladys Berejiklian
Do big investments in solar energy point to a different future for the oil-rich nations of the Middle East?
Have a spate of bites and sightings up and down the NSW coast raised the odds that an attack awaits beachgoers this summer? Peter Hannam investigates.
Westpac's decision to effectively rule out lending to the proposed giant Adani coal mine in Queensland has drawn praise from environmentalists but derision from the government and industry.
Temperatures in the capital slipped to minus 1.8Â degrees at 6:50am on Friday.
A cold snap is likely to give way to a milder few months ahead.
The wind farm will be NSW's largest once it is completed.
University of Canberra scientists are harnessing mobile phones to tap into frogs' conversations.
He was healthy before the flight, the rabbit's breeder says.
Rising energy prices drive a huge surge of consumers and businesses installing solar panels.
A Kiama drone operator has told of his urgent efforts to raise the alarm after a shark made an unexpected appearance in his video, coming disturbingly close to unaware surfers.
The findings highlight the importance of keeping humpback "nursery" waters as quiet as possible, scientists say.
Autumn is likely to feel a lot like winter over the coming days - particularly in the evenings and early mornings.
Scientists in Australia are examining the possibility of enlarging and brightening the clouds around the Great Barrier Reef to save it from bleaching.
An earthquake of magnitude 6.9 has struck off the coast of Chile, rocking the capital Santiago and generating at least two significant aftershocks.
A bull shark caught off Swansea at Lake Macquarie has stirred up a social media storm, with a photo of the enormous aquatic predator quickly gaining notoriety.
Authorities closed the beach to swimming as crowds gathered on the sand to watch sharks hunt the schools of mullet.
Wendy Bowman seems an unlikely character to be taking on one of the biggest mining companies in the world.
Friday was the first full day since the height of the Industrial Revolution that Britain did not burn coal to generate electricity, a development that officials and climate change activists celebrated as a watershed moment.
As he tried to revive surfer Laeticia Brouwer, Esperance community paramedic Paul Gaughan knew her shark bite injuries were dire
Tourists have been gawking at the big berg, floating just off the coast of Ferryland in south-eastern Newfoundland.
Naked mole rats are marvellous and bizarre mammals; they don't get tumours, they live like social insects and are "cold-blooded" like frogs. And that's just for starters.
Attendance at SeaWorld Entertainment's theme parks has been falling amid negative publicity and criticism from animal rights activists upset by the treatment of captive marine mammals.
Tasmania could become a "battery for Australia" under a proposal to double the capacity of the country's largest hydro power scheme, Prime Minister Malcolm Turnbull has declared.
There was one slippery customer on board a train south of Sydney overnight.
Biochemists' discovery sounds like something out of a fairy tale.
A team of scientists have documented what they're describing as the first case of large-scale river reorganization as a result of human-caused climate change.
A Sydney housing estate is streets ahead when it comes to energy efficiency.
After months of care, almost 60 turtle hatchlings have been escorted away from danger and released into safe waters.
They craft and create webs every day, but the spiders in Tauranga, on New Zealand's North Island, probably weren't expecting to go viral on the internet.
A man from Sydney's south has captured a freshwater crocodile on a riverbank during an afternoon stroll.
Move over Chris the sheep, you might have some competition from Fred and George.
People living in arid, drought-ridden areas may soon be able to get water straight from a source that is all around them - the air, US researchers say.