China’s pursuit of climate goals may reshape palm oil supply chains amid sustainability challenges

China’s climate ambitions could end up reshaping one of the world’s most contentious agricultural supply chains, according to a new review published in Agricultural Ecology and Environment. The paper argues that the country’s “Dual Carbon” targets will only translate into real environmental gains if palm oil is produced without clearing forests or draining peatlands, and if governments and companies pair ambition with robust oversight, traceability and technologies that work at commercial scale.

The stakes are considerable. Palm oil is used across food manufacturing, personal care products, detergents and industrial applications, and it accounts for roughly 30% of global vegetable oil output. Its appeal to manufacturers lies in its high yield per hectare, which makes it difficult to replace without shifting pressure on to other land-intensive crops. But the same expansion that has supported global supply has also been associated with deforestation, peat degradation, loss of biodiversity and significant greenhouse gas emissions.

China matters because it is now the world’s second-largest importer of palm oil, with most volumes coming from Indonesia and Malaysia. Demand is driven by food processing, cosmetics and industrial uses, giving Beijing unusual leverage over how the crop is produced upstream. A number of sustainability analysts have long argued that this makes China not merely a buyer, but a potential standard-setter for the wider market.

The review says that leverage remains underused. Current climate policy in China tends to focus on emissions generated within its own borders, while paying far less attention to the carbon released abroad when imported commodities are linked to land conversion. That blind spot can create carbon leakage, in which the environmental burden is simply shifted to producing countries rather than reduced across the chain.

The authors identify several structural barriers. China does not yet have unified mandatory sustainability rules for imported palm oil, supply chains are fragmented, verification is difficult and the costs of compliance can be too high for smaller growers and processors. Carbon accounting methods also frequently fail to capture emissions from overseas land-use change, which weakens incentives to prevent forest loss in the first place.

The paper points to a set of practical responses rather than a single silver bullet. These include stronger certification, greener public procurement, sourcing commitments that exclude deforestation, and better digital traceability. Satellite monitoring combined with blockchain-style record-keeping and supply-chain data could help connect plantations to final buyers, although the review stresses that such systems are only as credible as the standards, audits and enforcement behind them.

Beyond monitoring, the study highlights the climate potential of palm waste streams. Empty fruit bunches, kernel shells, fibre and mill effluent can be converted into electricity, biogas, biofuels and biochar. Of the available options, methane capture and biomass recovery at mills appear to be among the most commercially realistic near-term measures for reducing emissions.

The review also cautions against simplistic claims that palm plantations are inherently carbon positive because oil palms store carbon in their trunks, leaves, roots and soils. The climate outcome depends heavily on what was there before planting. If tropical forest is cleared or peatland is drained, the resulting carbon debt can take decades to repay, even if the plantation later accumulates biomass.

For industrial decarbonisation professionals, the broader message is that commodity emissions are no longer just a producer-country issue. China’s purchasing power, procurement standards and carbon accounting rules could influence land use far beyond its borders, but only if they are tied to enforceable sustainability criteria and credible data. The review’s conclusion is blunt: reducing emissions and protecting biodiversity in palm oil will require coordinated action from governments, companies, lenders, producers and consumers alike.