Mike Holland is a freelance consultant based in the UK. He has worked on assessment of pollution effects on ecosystems and health since 1986, and he has performed a large number of cost-benefit analyses for national government and the European Commission, particularly in relation to measures to improve air quality. He is currently the chair of NEBEI (Network of Experts on Benefits and Economic Instruments) under the UNECE Convention on Long Range Transboundary Air Pollution.