Graeme Clark

April 22, 2024

More than coral: the unseen casualties of record‑breaking heat on the Great Barrier Reef

John Turnbull, University of Sydney; Emma Johnston, University of Sydney; Graeme Clark, University of Sydney, and Steph Gardner, University of Sydney

Bleached coral draws our attention, but marine heat does damage to many unseen parts of these ecosystems.

January 15, 2021

75% of Australia’s marine protected areas are given only ‘partial’ protection. Here’s why that’s a problem

John Turnbull, UNSW ; Carly Cook, Monash University; Emma Johnston, UNSW ; Graeme Clark, UNSW , and Kelsey Roberts, Stony Brook University (The State University of New York)

Partially protected areas don’t have more wildlife than unprotected areas. They consume conservation resources and occupy space that could otherwise be allocated to more effective protection.

September 20, 2018

Desal plants might do less damage to marine environments than we thought

Graeme Clark, UNSW and Emma Johnston, UNSW

Pumping very salty water into the ocean has surprisingly little impact on marine life.

November 24, 2016

Bright city lights are keeping ocean predators awake and hungry

Damon Bolton, UNSW ; Alistair Becker; Emma Johnston, UNSW ; Graeme Clark, UNSW ; Katherine Dafforn, UNSW , and Mariana Mayer-Pinto, UNSW

Light pollution is changing the day-night cycle of some fish, dramatically affecting their feeding behaviour.

November 11, 2013

Melting ice leaves polar ecosystems out in the sun

Graeme Clark, UNSW ; Emma Johnston, UNSW ; John Runcie, University of Sydney; Jonathan Stark, Australian Antarctic Division, and Martin Riddle, Australian Antarctic Division

It is no secret that climate change is transforming the polar regions. Retreating glaciers, melting ice-caps and changing sea ice patterns are frequently reported in both the Arctic and Antarctic, and…