|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)
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
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
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
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.