The UK NEA methodology builds on work published since the MA, including post MA reviews (Carpenter et al. 2009), The Economics of Ecosystems and Biodiversity’s (TEEB) Scoping the Science report (Balmford et al., 2008), Fisher et al. (2008) and the European Academies Science Advisory Council’s (EASAC) 2009 policy report.
The UK NEA conceptual framework has been adapted to fit an UK Ecosystem Assessment:
⇒ The classifications of ecosystems ("broad habitat" types), ecosystem services, change processes and goods are all in the context of the UK.
⇒ It incorporates the elements that economists need for economic valuation; explicitly using "marginal changes" not total values and identifying final services to avoid double counting. This component will also assess the ecosystem contributions to goods/benefits.
⇒ It incorporates measures of well-being for non-economic values.
⇒ It separates out the underpinning natural and social processes from the outputs from ecosystems from which people benefit.
⇒ It explicitly recognises the remit of the UK NEA to consider policy relevant changes occurring over a defined timespan. These are implemented through a series of scenarios regarding feasible and decision pertinent changes in the environment, markets and policy.
⇒ It considers the role biodiversity plays in three different ways.