Josh Frydenberg is being warned that massive federal government debt from emergency pandemic spending could double in coming decades as borrowing costs rise and spending costs blow out.

Fiji's tourism industry, the backbone of the country's economy, is under threat as coral reefs are killed off. But a US-born marine biologist known as "the coral gardener" says he may have a solution to the problem.

TELSTRA is set to pick up more than 50 per cent of the design and planning work for the ­National Broadband Network.

IRON ore has broken a run of nine straight red trading sessions, but only marginally, and there’s little sign of a sustained rebound.

Investors would do well to focus on fundamentals driving different segments of retail and UBS offers useful insights.