Mystery of Gross Black Balls on Sydney Beaches Uncovered

Thousands of mysterious black balls that washed ashore on Sydney beaches were identified as 'fatbergs,' composed of human waste, hair, cooking oil, and other materials. Initially thought to be tar, these blobs prompted beach closures as they were removed. Formed in sewers when materials fail to dissolve, the exact origin of these fatbergs remains unknown, raising concerns about future occurrences. The NSW Environmental Protection Authority is conducting further tests to determine their source.