Sheridan Mortlock

Mortlock has entered Miss Earth Australia three times.^[7]

On 4 September 2022, Mortlock won Miss Earth Australia 2022 at Hyatt Regency in Sydney, Australia, also receiving the special awards; "Darling of the Press", "Best in Swimwear" and "Best in Evening Gown". She was crowned by Miss Earth Australia 2021, Phoebe Soegiono.^[8]

By winning Miss Earth Australia 2022, Mortlock was tasked to have advocacy as one of the core requirements for joining Miss Earth. Her advocacy was Action, Care, and Education (ACE). Mortlock added, "Climate change and environmental protection are all linked through webs of connection. If we change one element of the ecosystem, then it will ripple out to others. This is why we must use the pillars of ACE to make the most effective changes. Only through Caring about our environment, Educating ourselves on current environmental changes, and then taking direct Action will we be able to protect Mother Earth."^[9]

During the course of the preliminary events, she won the following awards:

• Darling of the Press (Asia & Oceania)^[10][11]
• Swimsuit Competition (Asia & Oceania)^[12]
• Beach Wear Competition (Fire Group)^[13]
• Miss Congeniality

Mortlock won Miss Earth – Air 2022, and South Korea's Mina Sue Choi won Miss Earth 2022.^[14][15]