Norfolk Island’s unique corals under triple threat from disease, El Niño and now government-approved dredging

Exclusive: Most of the island’s corals are likely to be species that have not been formally described by science, researcher says Get our breaking news email, free app or daily news podcast Scientists fear unique corals that fringe Australia’s remote Norfolk Island could disappear because of a triple threat of disease, El Niño and a federal government plan to dredge a neighbouring shipping channel. A failure to manage sediment and pollution washing into bays from cattle farming, cleared land a