Correspondence

摘要

The Convention on Biological Diversity (CBD) agreed in 2010 to restore "at least 15 per cent of degraded ecosystems" by 2020. In Finland's experience, this target is unrealistic. Ecosystem destruction is measured according to the expanse and degree of degradation. Consequently, under the CBD agreement, damage to an ecosystem's condition needs to be reduced by 15% over an entire area of degraded landscape or, for example, by 33% in a randomly selected 45% of that area to attain the same reduction.