The process of photosynthesis consumes CO₂ and releases O₂, but this process also works in reverse.  When you add up the total amount of CO₂ consumed by a plant compared to the total amount of O₂ produced by a plant, if the plant is healthy and does not die back, then the CO₂ consumption value is usually higher.  If kept in good health and maintained properly, 5m² (~54ft²) of G-Sky Green Wall Panels, 8m²(~86ft²) of G-Sky Vine Containers or 10m² (~107ft²) of G-Sky Extensive Green Roof consumes approximately the same amount of CO₂ as a 13 foot-high tree per year.   

G-Sky Green Wall Panels, Vine Containers and Extensive Green Roofs also consume trace amounts of Nitrus Oxide (42.8g/year) and Sulfur Dioxide (1.8g/year) (based on the same surface areas above).

CO₂, NOx and SO₂ consumption rates vary greatly depending on the plant selection, our values for G-Sky Green Wall Panels reflect the use of small evergreen shrubs and ferns, Vine Containers reflect the use of evergreen vines, and Extensive Green Roofs reflect the use of various sedums. If small evergreen shrubs or other semi-woody to woody perennials were used on the roof, the comsumption rates would be similiar to those of the wall.