Reforestation of tropical rainforests as a negative emissions technology in Malaysia: An environmental and economic sustainability assessment.

Forest carbon sequestration is a promising negative emissions technology as it is relatively simple and inexpensive. Its potential for climate mitigation could be particularly high in tropical rainforests as they can store more carbon at a faster rate. However, the understanding of its sustainability is limited due to the scarcity of studies.

Biochar from agricultural wastes: Environmental sustainability, economic viability and the potential as a negative emissions technology in Malaysia.

Biochar used for soil amendment is considered a viable negative emissions technology as it can be produced easily from a wide range of biomass feedstocks, while offering numerous potential agricultural benefits. This research is the first to present a comprehensive sustainability assessment of large-scale biochar production and application in Malaysia. The five feedstocks considered comprise the country's most abundant agricultural wastes from palm oil (empty fruit bunches, fibres, palm fronds and shells) and rice (straw) plantations.