CARBON NEUTRAL BRIGG FACILITY?

Brigg has several well-known avenues of trees that release oxygen into the atmosphere, including those lining Wrawby Road and Cadney Road.
But let's not forget the Recreation Ground which has 60+ mature poplars on its border with farmland and 11 more near the entry road.
Most are thought to date back to the early 1950s when Brigg Urban District Council created the sportground on part of Woodbine Farm.
The Rec has changing rooms with showers,  floodlights which are used during Saturday hockey matches and for training during autumn and winter, and mechanical mowers cut the grass.
But, with all its trees, is our ground carbon neutral during the warmer months of the year?
The Rec must have a praiseworthy footprint as it appears that a mature tree may use up well over 40 lb of carbon dioxide a year and produce all the oxygen needed to keep two people breathing over the same period.