Furthermore this may highlight the need for each country to investigate better the background of available data and their relevance. The low number for level 1 for wetlands in Norway can be explained partly by the melting of permafrost due to climate change (an indicator in NI), and this cannot be reversed by applying ecological restoration. This implies that any new disturbed land during the same time period must be compensated or restored on top of the 15%. This calls for a system to monitor or measure degradation, and not only to measure progress in restoration.