'Wonga Carbon Project

Wonga Carbon Project is a soil carbon sequestration project located approximately 30km northwest of Inglewood (and roughly 50km northeast of Goondiwindi) in the Darling Downs region of Queensland. It was registered in March 2021 and originally covered approximately 440 hectares.

The Measurement of Soil Carbon Sequestration in Agricultural Systems 2018 methodology involves landholders changing their agricultural management practices to increase soil organic carbon. Standard requirements dictate that projects must undertake rigorous baseline soil sampling without bias and perform subsequent testing to measure actual carbon storage over time, with the goal of improving overall soil health, crop yields, and pasture quality.

The Inglewood and Goondiwindi region is primarily known for robust agricultural operations, specifically sheep and cattle grazing, alongside broadacre cropping. The area experiences a semi-arid to subtropical climate with medium rainfall (averaging around 600mm annually). The region's soils largely consist of deep cracking clays (vertosols) and texture-contrast soils, which are capable of significant long-term carbon storage when managed regeneratively.

This project aims to increase carbon in the soil by actively applying nutrients to the land in the form of synthetic or non-synthetic fertilisers to address specific material deficiencies. Additionally, a recent variation was applied to the project on March 4, 2025, which saw some of the previously listed areas removed from the project's boundaries, reducing its overall active area.