Risk, regulation and offshore windfarms: Ways to manage environmental uncertainty and over-precaution.

Globally there are concerns over a warming climate and the UK has declared a climate and ecological emergency and has an ambitious programme for the growth of offshore windfarms to contribute to commitments to achieving a legally binding Net Zero for greenhouse gas emissions by 2050. Offshore windfarm consenting is comparatively mature in the UK but evidence gaps to inform impact assessment and uncertainty to inform decision making has led to a precautionary approach that slows the speed of consent decisions. This paper examines the approach to UK offshore windfarm consenting, reviews the precautionary but risk-based approach that environmental decision makers have adopted in light of evidence gaps, and summarises how the collection of empirical data and reviews of evidence collected from operational windfarms has improved scientific knowledge and focussed decision making. A summary is also provided of the enduring legislative safeguards that apply during the lifetime of any consent and recommendations are made on the risk appetite that advisers and decision makers should adopt in view of policy that seeks to accelerate sectoral growth whilst enhancing nature recovery. • The UK has an ambitious programme for the construction of offshore windfarms. • Environmental evidence gaps lead to a precautionary approach that slows consenting. • Consenting should use a risk-based approach and an appropriate risk-appetite. • Empirical data and reviews of evidence are needed to improve scientific knowledge. [ABSTRACT FROM AUTHOR]