In 2025, the agricultural sector is experiencing a significant transformation, particularly in greenhouse farming. This is driven by the strategic use of carbon dioxide (CO2) enrichment to enhance plant growth and productivity worldwide. Elevated CO2 levels are proving to substantially increase crop yields, improve water-use efficiency, and bolster plant health.
Research shows that increasing CO2 levels in greenhouses can lead to yield improvements of 20% to 40%, depending on the crop and environment. Cherry tomatoes, for example, showed a 38% yield increase in China under CO2-enriched conditions. This is a global trend impacting food production.
Advanced CO2 enrichment technologies are also optimizing greenhouse operations. Companies like CO2 GRO are developing innovative systems. These systems create a microfilm on crop leaves using an aqueous CO2 solution, enhancing photosynthesis and protecting plants from pathogens. This technology is being tested in the U.S. with results expected in late 2024.
The adoption of CO2 enrichment aligns with sustainable practices by improving resource efficiency. Elevated CO2 levels can enhance water retention in plants, reducing the need for irrigation. AgriAir has introduced a CO2 recycling system that captures emissions from boilers and redistributes them into grow rooms, boosting plant growth rates by up to 20%.
As of July 2025, the greenhouse farming industry continues to explore and implement CO2 enrichment strategies. Ongoing research and technological advancements are expected to refine these practices. This will make them more cost-effective and accessible to a broader range of growers. This is a global effort to enhance food security and sustainability.