Rising atmospheric carbon dioxide concentrations increase gaps of rice yields between low- and middle-to-high-income countries.

The rising carbon dioxide concentrations are expected to increase future rice yields. However, variations in the CO fertilization effect (CFE) between rice subspecies and the influence of concurrent global warming introduce uncertainty in future global rice yield projections. Here we conducted a meta-analysis of rising carbon dioxide field experiments and employed crop modelling to assess future global rice yields for the top 14 rice producing countries.

Does elevated CO enhance the arsenic uptake by rice? Yes or maybe: Evidences from FACE experiments.

Elevated CO (eCO) strongly affects rice yield and quality in arsenic (As) paddy soils. However, understanding of the As accumulation in rice under coupled stress of eCO and soil As is still limited while data are scarce. It greatly limits the prediction for future rice safety.

Elevated CO and temperature under future climate change increase severity of rice sheath blight.

Sheath blight (ShB), caused by , is one of the major threats to rice ( L.) production. However, it is not clear how the risk of rice ShB will respond to elevated CO and temperature under future climate change.