'Tar ball' mystery: Sydney identifies objects that shut beaches - BBC.com
- 'Tar ball' mystery: Sydney identifies objects that shut beaches BBC.com
- Bizarre ‘tar’ balls that appeared on Sydney beaches found to contain something much more disgusting The Independent
- Black balls on Sydney beaches are likely ‘fatbergs’ showing traces of human faeces, methamphetamine and PFAS: new analysis The Conversation
- Mystery surrounding 'toxic' black balls washed up on Sydney beaches is finally solved Daily Mail