City of Sydney councillors have voted in favour of a motion that states climate change poses a serious risk to Sydneysiders.

The world simply doesn’t have enough virgin resources to support the 10 billion people who will be on our planet by 2050.

Councillors will vote next week on a plan to declare climate change as posing a "serious risk" to the residents, and that it should treated as a national emergency.

Animal testing may have held back the discovery of treatments and cures for humans because they did not work well in animals.

The death of a worker exposed to a sewage overflow at Homebush Bay's Olympic Park and who died just three days later is being investigated by SafeWork NSW.

In Sydney, such days were mostly linked to smoke from prescribed burning, the report said.

NSW's newest coal-fired power station has endured "significant disruptions" to its fuel supplies from a nearby mine.

A local conservationist said the council shifted at least 12 tonnes of dead fish while others were 'swept out to sea'.

Australia's deepest offshore gas well drilling has won approval from regulators before its environment plan has been made public under rules that have since been tightened.

The temperatures - of 53.9 degrees in Mitribah, Kuwait, on July 21, 2016, and 53.7 degrees in Turbat, Pakistan, on May 28, 2017 - are among the four hottest ever recorded.

Among outlays for the 2019-20 year, the government will spend $70 million on environmental programs, including protecting threatened species such as koalas.

Researchers in the study say the findings show the need for further investigations into the potential relationship between wind turbine noise and sleep disturbance.

We can't afford business as usual. We need action, optimism and relentless focus.

The Coodardie cattle station may not be the most likely place to find a farm in sync with nature.

The restart of Sydney's desalination plant is proceeding faster than expected, helping to slow the drawdown of the city's reservoirs amid the ongoing drought.

Mycelium, the vegetative part of fungus, is being deployed as one of the world's great recyclers.

Australia’s koala conservationists want the prime minister to learn from the “American success story” where the US bald eagle has been saved from extinction.

The number of threatened plants and animals in NSW continues to climb and impacts on biodiversity and the economy from climate change will keep intensifying, according to the latest State of the Environment Report.

The UN report on species extinction is a wake-up call for the planet, and for Australian politicians.

Gloucester Resources has dropped plans to appeal against a court decision that blocked its planned mine in part because of its climate change impacts.

They're calling this the climate election but both sides are failing to rise to the scale of the challenge, writes a former Liberal leader.

El Ninos are becoming more common in the central Pacific but also developing into more extreme events in the ocean's east.

A tiny island rodent, the Bramble Cay melomys, has become the first known demise of a mammal because of human-induced climate change.

The use of carbon credits to meet Australia's Paris climate targets would be "consistent" with the current Kyoto Protocol, the Morrison government said in the strongest signal yet it plans to exploit accounting ambiguities to meet its international commitments.

The "viability of the Darling" is at risk without urgent action, a report by the Australian Academy of Science has found.