The value follows a declining trend to reach about 600 million Euros in 2010 and just above 500 million Euros in 2020 even though the carbon sink has increased. This means that under the assumed market conditions, the rate of decrease in the value is faster than the rate of increase in the sink. It can be noted here that the present value of the sink increases both with the increase of CO2 price and the decrease of market interest rate. With the former one, the present value still follows the declining path and the rate of decline increases over time, while with the latter the rate of decline decreases or the present value increase over time.