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Staff & Associates
Green Horizons Environmental Consultants works with a small network of selected experts drawn from industry, government, academia and the NGO community to deliver sustainable and cost effective solutions.

Dr Paul Mitchell (Director, Green Horizons Environmental Consultants Ltd)
BEng, PhD, MCSM
Paul has specialised in clean technology, technology transfer, waste management and contaminated land and water treatment across a number of industrial sectors - in particular mining and quarrying - for more than fifteen years. His experience includes the application of mineral engineering technologies in environmental protection and clean-up; development and practical application of best practice in the prediction, prevention, control and treatment of acid rock drainage at non-ferrous metal and coal operations; management and treatment of wastes and effluents generated by mining and quarrying activities; the design and application of indicators to monitor and optimise the environmental and social performance of mining operations and the research, development and implementation of innovative environmental technologies in developed and developing country contexts. He is particularly experienced in understanding and responding to the varied financial, economic, environmental and social concerns that different stakeholder groups may have regarding technical and management solutions.

David Cleasby (Associate)
BA, MA
David has a BA/MA in Classical Archaeology & Anthropology St. Johns' College, Cambridge University (1984 - 1987) and has recently completed an MA in Maritime Archaeology at Southampton University (2002 - 2004). His areas of expertise include heritage conservation and management (including relevant European and global legislation), analysis of natural and manmade risks to archaeological heritage, with a particular emphasis on the potential impact of industrial activities. David uses his experience to facilitate the development of a partnership approach between industry and heritage groups.

He has more recently been involved in public education aspects of heritage management. He is involved in writing a project design for a national mobile museum that will educate both developers and the general public in protection issues for both the natural environment and human cultural heritage.

David has also been a registered nurse for 10 years and has skills in several areas. In particular, these include the prevention and treatment of various communicable diseases, particularly HIV/AIDS, hepatitis and tropical diseases and the management of those with substance abuse difficulties. His management skills include leading and coordinating team mixes of both skilled and unskilled persons in various cultural and work setting, and the development and execution of Quality Assurance standards for both clinical and HSE programmes.


Dr Jonathan Ekstrom (Associate)
BA (Hons.) MA (Cantab) PhD (Sheff.)
Jonathan is an independent consultant who specialises in biodiversity issues, risks and their management within industry. He is a qualified ecologist with over ten years of experience in international biodiversity conservation, from field ornithology to community conservation programmes to IUCN red data book research. He has managed several biodiversity projects in East Africa, South and South-east Asia, the Pacific and Madagascar, including both formal surveys and monitoring and also several collaborative conservation initiatives between government departments, local communities and NGOs. Applying this experience to business issues, his current areas of interest and work include biodiversity offsets, biodiversity indicator and monitoring systems, biodiversity risk assessment, and the management of secondary impacts using cross-sector partnerships. He has had a close involvement in the design and implementation of the Rio Tinto biodiversity strategy and was previously a manager of the Rio Tinto - BirdLife International partnership.

Aharon Factor (Associate)
BSc, MSc, PhD
Aharon is a Visiting Research Fellow and Business and Sustainability Consultant at the Institute of Sustainability, Murdoch University, Western Australia. He has lectured and consulted extensively on corporate strategy, organisational behaviour, marketing and ISO 14001. With a complementary background in biology, biotechnology, environmental science, policy and planning, Aharon is well placed to assess and analyse issues at the interface of corporate strategy, stakeholder interests and sustainability across the natural resources sector.

Dr John Feltwell (Associate)
BSc (Hons Lond.), PhD (Lond.), F.R.E.S., F.L.S., C.I.Biol., F.I.Biol., F.L.L.A., Dip. Ad. F. Educ. (Kent), Dip. EC Law (Lond.)
John is an independent environmental consultant and an internationally renowned ecologist. He is a Fellow of the Linnean Society, the Royal Entomological Society of London, the Institute of Biology (of which he is also a Chartered Member) and the Association of Lawyers and Legal Advisors. He is also a Member of the Environmental Law Foundation, the United Kingdom Environmental Law Association and the Arboricultural Association and has been on the Register of UK Expert Witnesses since 1995. He has extensive experience throughout eastern and western Europe, North America and Asia and is highly qualified in the disciplines of botany and zoology, with particular expertise in Ecological Assessments, habitat surveys, protected species mitigation and restoration ecology. In addition to his consultancy work he has published extensively on the environment, ecology and conservation. [Further information on John's experience and publications can be found at www.wildlifematters.com]

Nia Hughes-Witcomb (Associate)
BA(Hons), MSc(Econ)
Nia is a consultant with URS. She is a qualified economist and specialises in sustainable development for natural resource management. She currently has over ten years of experience of project management in sustainable development, including policy development and review, Corporate Social Responsibility (CSR) and sustainable development reporting and planning, impact assessment, socio-economic/community risk profiling, stakeholder engagement and consultation.

She has professional experience in industry at the corporate and site level, environmental consultancy, research, tertiary education and voluntary development. Nia's primary corporate role in sustainable development has been to develop and implement CSR reporting systems, management standards and policy guidelines alongside review work, training and capacity building. Through consultancy, she has conducted sectoral reviews, scoping studies and impact assessments for resource development requiring detailed analysis and community consultation. Her academic research has been focused on practical solutions for development issues.

Her thorough understanding of the development challenges and risks faced by companies and stakeholders is supported by projects undertaken for private sector clients, government and international institutions (e.g. World Bank, IFC, DfID, Environment Canada) and academic institutions. She has direct project experience in Canada, China, Guinea, Guyana, Peru, South Africa, Mozambique and Tajikistan and has conducted desk reviews and analysis for sectors in Indonesia, Papua New Guinea and Zimbabwe, Zambia.


Dr Magnus Macfarlane (Associate)
BSc, MSc, PhD
Magnus Macfarlane has a PhD in Business and Socio-economic Impact Assessment and an MSc in International Development Planning. He is an accredited socio-economic assessor, accountant and assurance provider with over twelve years experience in corporate responsibility, gained as both a senior consultant and fellow at the universities of Oxford and Warwick. Magnus has specialist expertise in the use of complimentary corporate responsibility tools including stakeholder consultation, strategic partnership, livelihood analysis, monitoring and auditing. He has published widely and provided analysis, training and advice to a wide range of international companies (e.g. BP, Shell, DHL, RioTinto, Placer Dome and AngloAmerican) and institutions (e.g. OECD, UNDP, IMF, DTI and DfID) in these areas.

Camilla Maclean (Associate)
Nursing Diploma, MSc
Camilla is an experienced independent consultant working on global health, international development and Corporate Social Responsibility issues, with a specific focus on the mining sector. Her recent projects include international, multi-partner strategic analysis of community health issues for rural communities in developing countries affected by the extractive natural resource sector; the development and piloting of a quality-of-life survey instrument and community health and wellbeing indicators using qualitative and participative research methods; consultation to multinational mining companies on community health strategies (focused on HIV/AIDS) and stakeholder consultation with communities in Madagascar and Mozambique. She is currently completing a PhD on decision-making in multinational mining corporations with a particular focus on community health investments in Southern Africa, which complements her earlier MSc dissertation 'Ecosystem Impact to Human Health: The Mining Industry and Community Health Issues'.

Dr Stephen McGinness (Associate)
BSc (Hons), PhD
Stephen is a biochemist with specific experience in the prediction, prevention and management of long-term environmental impacts in the mining sector resulting from bacterial-mineral interactions. He has recently been appointed as the Head of the Public Information Office at the House of Commons. Prior to this and since 1998 he was a Research Officer in the Science and Environment Section of the House of Commons Library, providing specialist information for Members of Parliament on a broad range of topics relating to science and the environment, including sustainable development, climate change and the Kyoto Protocol, marine and land wildlife conservation, pollution prevention and control, and the treatment of acid mine drainage.

Dr Clive Nicholas (Associate)
BSc (Hons), PhD, C.Eng, MIMM, C.Geol, FGS, FIQ
Clive is an independent consultant with more than 30 years experience of resource evaluation, mine planning and business development for industrial and construction minerals throughout the UK, in Europe and in the USA. He is a member of a number of steering committees and advisory panels for various mineral planning research projects under Department of the Environment/Department of the Environment, Transport and the Regions (now DEFRA) and maintains strong professional links with industrial, academic and government organisations dealing with minerals and environmental issues. His recent work includes managing the restoration and aftercare of two closed landfill sites in Devon and Dorset, and acting as project leader for the geodiversity audit of active aggregate quarries in Devon, supported by the Aggregates Levy Sustainability Fund.

Amy B.R. Sweeting (Associate)
Harvard University, M.P.P., Public Policy (Environment and Natural Resources), Stanford University: A.B. (Honors), International Relations.
Amy Sweeting is an independent consultant specialising in environmental and development issues, particularly as they relate to extractive industries, including oil and gas development and mining. She recently served as a consultant to the Energy and Biodiversity Initiative and the World Bank Extractive Industries Review. Previously, she worked for five years at Conservation International, focusing specifically on best practices for oil, gas and mining companies operating in sensitive ecosystems. She has also worked as a journalist in both Washington, D.C., and Tokyo, Japan, and studied international climate change mitigation strategies at the Harvard Institute for International Development.

Harvey Wood (Associate)
BA, MA, PhD
Harvey is Director of the Clean Rivers Trust. He is a Member of the Royal Geological Society of Cornwall, a Fellow of the Geological Society and an Honorary Fellow of the Camborne School of Mines (University of Exeter). Harvey has worked extensively on water resource issues related to mining and quarrying, agriculture, urban and road drainage, dye house effluents and sewage treatment and has recently co-authored a state-of-the-art review of minewater treatment technology, application and policy. Additionally he has specific expertise in wetland creation and management, river catchment management and river ecology. His other interests include contaminated land, renewable energy and clean technologies. His past clients include RJB Mining, Midland Mining, Bass, Allied Lyons, Marstons, SmithKline Beecham, Forest Enterprise, Forest of Dean District Council, the National Rivers Authority, the Environment Agency, Coal Contractors, Scottish Coal, Albright and Wilson, Alkane Energy, Nottinghamshire County Council, Easington District Council, Kings Lynn Borough Council, the Wash Fisheries Board, Coal Authority, IMC, Wardell Armstrong, HM Prison Service, Home Office, DEFRA, DTI, Hartlepool Water, Northumbrian Water, Severn Trent Water, Rodia, ERM, Port of London Authority, Copeland Borough Council, Cargill and BG Energy Services.
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