Nitrogen management policies introduced in the past decades by some OECD countries have succeeded in reducing excess nitrogen use by farmers, but half of global mineral fertiliser use is still lost for crops. While about half of OECD countries have nutrient surpluses of between 25-50 kg N per...

Integrated assessment frameworks which can account comprehensively for the benefits related to water quality improvements have not yet been established. The main challenge is to link economic valuation with hydrological data in an appropriate way. We here explore the so-called 'impact pathway...