Tim Cohen – The Conversation

Lake Couridjah, Thirlmere Lakes National Park in New South Wales. Shutterstock

September 21, 2022

We helped fill a major climate change knowledge gap, thanks to 130,000‑year‑old sediment in Sydney lakes

Alexander Francke, University of Adelaide; Anthony Dosseto, University of Wollongong; Haidee Cadd, University of Wollongong, and Tim Cohen, University of Wollongong

80% of carbon on land in stored in soil. Our new research investigated how erosion transports this carbon to the bottom of lakes, where it’ll never be released into the atmosphere.

Abrupt warming events may have helped kill off megafauna species like the mammoth. AAP Image/James Shrimpton

July 23, 2015

Abrupt climate warming, not cold snaps, kicked off megafauna extinction: study

Eliza Berlage, The Conversation

New research challenges previously held views that the Ice Age, giant biblical floods or hunting by humans were the key drivers behind the disappearance of megafauna.

Lake Eyre: pretty dry today, but before 50,000 years ago it was an inland sea teeming with life. Matt Malone/Wikimedia Commons

February 25, 2015

Drying inland seas probably helped kill Australia’s megafauna

Tim Cohen, University of Wollongong; Gerald Nanson, University of Wollongong; John Jansen, University of Potsdam, and Joshua Larsen, The University of Queensland

Huge beasts roamed Australia before suddenly dying out around 50,000 years ago. New research shows that at this time, vast inland lakes dried up, potentially explaining the megafauna’s demise.

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