Ms Lilian O'Sullivan:

Getting back to the old versus new question, new hedgerows sequester more but as a stock are much smaller until they get to maturity. The rate of sequestration declines. However, if we are looking at hedgerows' potential as a carbon stock and whether that changes over time, ecosystems that accumulate more carbon than they lose can become sinks. Effectively, they have sink potential. Sequestration accumulates over time and reaches an equilibrium but I think we have covered that it is about multiple benefits. It is not only sequestration.