Tasik Chini's biosphere reserve status from the United Nations Educational, Scientific, and Cultural Organisation (Unesco) is currently under scrutiny and its preliminary findings are not favourable.

The lake is the first of only three Malaysian biosphere sites recognised by Unesco as part of the Man and Biosphere (MAB) programme.

The programme studies and improves the relationship between people and their environment through conservation and sustainable use of natural resources.

According to Unesco's first periodical review of Tasik Chini, the lake...