The 'land fishermen' of Gerik work through the night but catch only a fraction of what they once did.

They used to bring in hundreds of kilos of fish per week but now struggle to land 20kg.

Suzairi Zakaria has more than 2,000 plant species thriving in his backyard, but there are still more to save.

Three years ago, the village of Kuala Koh lost 14 children after their river water was polluted by manganese mining activities – and they worry that history might repeat itself.

It is important to differentiate sustainable forest management that complies with the principles of sustainability from conventional logging where indiscriminate logging takes place.

In their findings published by Cambridge University, the pair caution against linking depleting tiger numbers to deforestation.

Aminuddin Harun says the logs were actually rotten wood, and that clean-up activities took only two days.

Mohd Amar Nik Abdullah says logging activities in the state are carried out in accordance with the National Forestry Act 1984.

Once known for its clear water and lush greenery, Tasik Chini is now under threat from mining and logging activities which have already changed much of its landscape and affected the lives of the Orang Asli in the area.

They say they have lived in the area for generations.