Roberts Tweets by @GreenpeaceAustP

“Prof Callum Roberts "Do you want those ports or do you want the Great Barrier Reef to continue being great? Because you can't have both."”

Twitter / David_Ritter: Callum Roberts on Australian ...

Twitter / David_Ritter: Callum Roberts on Australian ...

RT @David_Ritter: Callum Roberts on Australian attitudes to coal mining...

“RT @SavageNatPelle: Callum Roberts: Supertrawlers don't spread their catch, they concentrate it. It's the economics. #oceans #goodriddancemargiris”

David Thomas Conservation Oration 2013 - Prof. Callum Roberts

David Thomas Conservation Oration 2013 - Prof. Callum Roberts

#SydneySiders! You're invited to a talk by world-leading #marine scientist Callum Roberts, 18 Mar #GBR

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