A report by the Australia Institute has found filling in the region’s 23 mine voids would cost between $11.5 billion and $25.3 billion.

NSW Labor will reject plans by the NSW government to regulate the ability of irrigators to capture flood waters flowing across their properties.

Former South Bank Corporation chairman Steve Wilson AM has confirmed he will place an offer on Kangaroo Point’s Lamb House, while property developer Kevin Seymour ‘will again look at it’.

Even if the federal government takes no action, the states’ own efforts to reduce climate change would enable Australia to meet current emission reduction targets.

Who cares about the fate of Australia’s 243 known frog species? It turns out that many thousands of us do.

Alpine cattle graziers and environmentalists form an unlikely alliance in a bid to stop logging in Victoria’s high country.

The NSW SES received more than 1100 calls for help on Thursday, as the big wet brings flash-flooding, landslips and hazardous surf alerts.

The publication of the state’s new koala habitat policy has revealed a senior regional NSW official has the right to reject management plans by councils.

More than 75 organisations and individuals have signed an open letter calling on the Ross Trust to withdraw its plans to expand its quarry on the Mornington Peninsula and destroy bushland.

A three-day burst of rain from Thursday is likely to be the wettest for Sydney since at least last July, with up to 100 millimetres expected on Saturday.

When a critically endangered bird starts to lose its birdsong, conservationists know the species is in even more dire straits than its dwindling numbers suggest.

The City of Sydney will spend $377 million over the next decade to boost tree cover, adding about 700 trees a year to parks, lanes and roads.

One Liberal MP is calling for the governments to subsidise rather than tax electric vehicles as the industry ships its products to more welcoming markets.

The Berejiklian government has been accused of seeking to mask the effect of the 2019-2020 bushfires to protect the logging industry after it asked the main resources watchdog to prepare a secret study.

The government is preparing a “network management plan” for marine parks stretching from Byron Bay to Batemans Bay, stoking fears from advocates of both conservation and recreational fishing about the possible outcomes.

The Bureau of Meteorology has forecast a top of 35 degrees in the late afternoon today with temperatures set to soar into the 40s across much of the state on Monday before a cool change arrives in the evening.

US President Joe Biden placed climate action among his top priorities on taking office. Most analysts expect Australia’s relative inaction to get more attention.

Heritage NSW has blasted the Berejiklian government’s preparations for raising the Warragamba Dam wall, saying consultation with traditional owners was inadequate and modelling was needed to determine the likely impacts to cultural heritage from inundation.

State-owned Forestry Corporation says last summer's record bushfires scorched half of the native forest estate and a quarter of its softwood plantations, setting the agency on track for a sharp drop in revenue in coming years.

Blistering heat from inland Australia will sweep towards the NSW coast in coming days, prompting health authorities to warn the public to take "necessary precautions" to avoid heat-related illnesses. 

With governments around the world declaring hydrogen to be central to the future, an Australian firm is developing the first domestic hydrogen products.

The cost of NSW's biggest dam project could blow out to $2.1 billion, or more than triple the original estimate, delivering what is likely to be the most expensive water in the Murray-Darling Basin.

In an open letter to the Berejiklian government, the association says TransGrid should have detailed other options in its EIS to the building of two giant overhead transmission lines.

The Bureau of Meteorology is forecasting a severe heatwave to set in over Friday to Sunday with extreme conditions expected in some areas along the NSW coast.

Hundreds of forestry jobs are at "imminent" risk because of the lack of available timber following last summer's bushfires, the state-owned logging company warned in a letter to the environmental watchdog.