What We Do

Oak trees absorb CO2, produce dense, strong wood, and have long lives. Once felled, the CO that helped create the oak tree can be locked up for centuries in building structures.

At OO, we choose planting sites that have little value for agricultural production, and encourage a high survival rate for the trees. These sites do not qualify for DEFRA tree planting grants.  


The additional benefits of improved biodiversity enhance the environment locally; and the greater air and water quality will impact the immediate surroundings and beyond.


We share the aims of the DEFRA long-term plan regarding environmental improvements and benefits.


Landowners joining with OO to plant trees will receive an annual statement of planting and potential for sequestration, biodiversity, and air and water quality.


Studies of tree growth in England indicate that an oak tree can absorb 5-6 tonnes of CO2 by age 60, and 20 tonnes by age 200. OO assigns a COoffset value of 1 tonne to each tree. This significant under-estimate of carbon sequestration potential ensures good value for offsetters. The ‘not-for-profit’ status means all funds are spent planting trees. This model provides a carbon positive outcome that will benefit everyone involved.

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Not for profit

It is all about planting trees.


The English Oak supports more species than any other UK tree, and thrive along side all other native species.


Trees reduce surface water runoff and erosion. An oak can absorb 300 litres of water each day, filtering and evaporating, and locking up CO2.


Oak trees absorb carbon and release oxygen through photosynthesis. Trees also remove particulate pollution in urban environments.