Integrity Ag and Environment is a specialist provider of expert services in agriculture and the environment. Our goal is to provide great outcomes in these areas for our clients on farm and for industries as a whole. We do this by applying expert scientific and engineering skills to answer the most pressing problems facing agriculture today.

Whether the challenge is around selecting the best facility design for a new operation, streamlining the development approval and environmental licensing process, maximising the benefits of renewable energy from manure and effluent streams, or earning new revenue from greenhouse gas mitigation, we focus on production and the environment for the best outcomes. Our specialist research and development work ensures that we are at the forefront of issues relevant to the industries we serve.

At the core of how we do business is Integrity, in all we do. That's why Integrity is in our name. Our key staff are profiled below.

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Principal Research Scientist

PhD, B. Rural Science (Hons 1)

Steve is Principal Scientist and owner of Integrity Ag and Environment. Steve has spent his lifetime working in agriculture and his professional career working in agri-environmental consulting. From addressing some of the biggest challenges on the agricultural landscape such as GHG mitigation and water resource management, to working with individual farmers to develop new intensive livestock facilities, Steve has a wealth of practical and research experience to offer.


Key areas of expertise include environmental management, waste and nutrient management, carbon accounting and ERF projects, LCA and resource use efficiency, environmental guideline development and agricultural extension.


Steve is an expert advisor to the International Wool and Textiles Organisation, the Australian Red Meat Industry, the Australian Pork Industry and the Federal Department of the Environment and Energy. For several years, Steve has also held technical advisory roles with the UN Food and Agriculture Organisation (FAO), and regularly presents at scientific forums in Australia and overseas.  Steve maintains an ongoing involvement in agriculture through their small scale sheep and cattle operation in northern NSW.  



Agricultural and Environmental Engineer

B. Engineering (Agr), M. Engineering, RPEQ (6837), MASABE

Eugene McGahan is an agricultural and environmental engineering consultant. Eugene has over 25 years experience working on environmental sustainability issues for intensive livestock industries. 


He specialises in development approvals, assessing the environmental performance of individual farms; undertaking industry-specific research to provide solutions to particular environmental challenges; designing and providing environmental management training; and developing environmental and planning guidelines and codes of practice. He has consulted widely with the beef feedlot, dairy, piggery, egg and meat chicken industries.



Senior Agricultural Scientist

PhD, B. Science (Hons 1)

Simon brings to Integrity Ag and Environment over a decade of experience conducting research in the applied plant sciences. His passion is the sustainable intensification of Australia’s agricultural and horticultural industries. Simon’s most recent research combined field work and simulation modelling to study genotype, management and environment interactions in the context of summer crop agronomy. Prior to this he conducted diverse experiments to investigate grapevine water use and berry ripening in viticultural contexts.


Simon’s PhD work traced carbon, nitrogen and oxygen flows through prehistoric landscapes to ancient bird populations via the preservation of isotope ratios in eggshells. A quantitative understanding of elemental flows through complex systems continues in his current focus on carbon accounting and life cycle assessment, primarily for livestock and agricultural industries. Simon’s undergraduate studies were in human and physical geography, which have provided him with diverse knowledge of Australia’s landscapes and their management.



Agricultural and Environmental Researcher

PhD , M. Animal Studies, B. Animal Science

Quan is an Agricultural Research Scientist with a professional background in animal sciences, soil fertility and quality and environmental assessments. His research interests are in biological processes and system dynamics management.

Since 2006, his primary research has been focusing on greenhouse gas emission mitigation strategies, waste and nutrient management, and systems thinking approaches towards the sustainable development of agriculture. Quan's PhD project at the University of Copenhagen investigated environmental impacts (i.e. nitrous oxide emission and soil carbon sequestration) of recycling animal waste and anaerobic digestion effluent to agricultural land, to optimise Biogas production values in Denmark.

Currently, Quan is working on change modelling for the wool and cotton supply chain, using life cycle assessment (LCA) with a focus on consequential modelling.


Jane Dunn

Agricultural Scientist

B. Agricultural Science (Honours)

Jane has recently completed a Bachelor of Agricultural Science (Honours) at the University of Queensland and joined the Integrity Ag team as an Agricultural Scientist. Her thesis was a comparative study of the growth and nutritional characteristics of newly released and older cultivars of Rhodes Grass. Jane has aksi developed knowledge and understanding of the agricultural industry and the issues it faces through her active involvement in her family’s beef cattle operation. Through both her education and experience Jane has developed a passion for agriculture and the environment and brings these both to bear in her work for industry and farmers in issues facing them and the environment they work within.


Charlotte Adam

Agricultural Scientist

M. Agricultural Science, B. Science (Zoology)

Charlotte has joined the Integrity Ag team after recently completing her Masters in Agricultural Sciences at The University of Melbourne in 2019. Her thesis investigated how extreme climate events affected soil carbon sequestration under grazed pasture. During her degree she was also exposed to research work with the Primary Industries Climate Challenges Centre, where she researched best management strategies for climate adaptation in Riverina New South Wales.


Both her internship at the Ministry of Environment and Green Development in Mongolia 2013, and her Bachelor of Science degree from The University of Melbourne 2017 have provided her with background experience and knowledge, as well as a passion for working to improve environmental problems for the agricultural industry.

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Research Scientist

B. Social Science

Madeleine is a Social Scientist who has varied experience in production and editorial management. She has also has experience in media and team management, as well as presenting and extension. 



Project Engineer

B. Engineering

Leo is a project engineer working on life cycle assessment (LCA) modelling for agricultural projects in the pork, wool and beef sectors.  Leo has a professional background in agricultural engineering and renewable energy, having worked on autonomous machinery systems, testing and development of hybrid tractor drivelines and the management of anaerobic digestion power plants in the UK.


Leo is currently also studying a second degree at the University of Queensland, expanding his engineering background with a biological sciences (wildlife conservation) degree.



Business Manager

B. Business Administration

Justin is the business manager for Integrity Ag. He assists with all the background business work which allows our professional staff to focus on what they do best. In his role he assists with contract management, financial administration, as well as some project work.


Kristina Duff

Project Manager 

B. Business and Commerce

Kristina is an Agricultural Economics and Accounting Consultant with Integrity Ag. She has a foundation in agriculture, business/project administration and operational efficiency. Stemming from these key capabilities, her role focuses on both business and project management. In her role in project management she is able to add value to projects where accounting and management can help to understand agricultural and environmental issues facing Australia and the global economy today.