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Being seen to be a responsible company has become big business, both financially and reputation-wise.

While the snow may have melted in Canberra, the action is heating up on the slopes south of the ACT.

Visitors to Sydney's Opera House were greeted by two seals enjoying the sun this week.

The southern half of Australia awoke to a deep winter chill on Thursday but the worst of the Antarctic blast is quickly passing.

Emergency services in Canberra were kept busy on Wednesday after wild weather downed multiple trees and caused traffic woes on several roads from Tuesday evening.

A winter freeze has gripped the nation, with snow and storms in the south of the country, even the top end of Australia is experiencing a cooler climate.

Stunning images show the scale of the flooding in China, caused by weeks of torrential rain and compounded by a typhoon.

It will snow in the ACT tonight as a cold front moves over the region, the Bureau of Meteorology says.

Damaging winds and blizzard conditions are forecast for the ACT and region from Monday to Wednesday.

A powerful cold front is set to bring 'dangerous' conditions to large parts of south-eastern Australia in coming days and send temperatures plummeting in Sydney.

A 700 kilometre stretch of mangrove shoreline in the southern reaches of the Gulf of Carpentaria has died, sparking fears of deeper implications for the ecosystem.

Scientists ask for public help spotting yellow-tailed black-cockatoos.

The weather gods are about to smile on Sydney - if only for a couple of days.

NSW is where scientists are especially worried, with proposed changes "likely to greatly increase the amount of deforestation and loss of habitat".

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.

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

Mice genetically engineered to sniff out bombs could one day join dogs in the hunt for explosives.

Expect the pitter-patter of tiny quoll feet in the Mulligans Flat Woodland Sanctuary in coming months.

Warning: graphic images. Major restaurants and butchers cut duck supplier over animal welfare accusations.

Taiwan is bracing for the full impact of super typhoon Nepartak, a monster category-five strength storm bringing torrential rain.

Forget finding Nemo or Dory, there's a famous Aussie marine giant whose gone "whale abouts".

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

Vietnamese architect Vo Trong Nghia has created an aromatic pavilion for Sherman Contemporary Art Foundation's fourth and final Fugitive Structures series of experimental architecture.

NSW will likely cop its third buffeting from an east coast low in five weeks but there is some good news.

Hungry spotted quoll may have been gathering food for quoll family in Namadgi.

Canberrans still wringing themselves out from the wettest June on record shouldn't put away their gumboots just yet.