Victoria's biggest-ever reef restoration project is underway, in attempt to restore the once abundant populations of native oysters in Port Philip Bay.

Australia has seen an unprecedented number of widespread, catastrophic transformations in response to extreme weather events.

More than 13,000 stings were recorded in Queensland alone last week, with more than 2,500 people seeking treatment over the weekend, according to rescue organizations.

Global warming has likely caused permanent damage to the world's largest coral reef, according to a new report in the journal Nature.