DR BRETT COHEN has an undergraduate and PhD degree in Chemical Engineering from the University of Cape Town in South Africa. Since completing his PhD, Brett has worked on a wide variety of sustainability orientated projects, in both academia and in the private sector.

Recent commercial projects which Brett has carried out include:
	SWOT analysis for large resource companies in the context of climate change
	Carbon footprinting for various industrial and minerals processing operations
	Greenhouse gas monitoring, impact assessment and mitigation studies,
	Exploration of bioenergy opportunities from waste biomass
	Development of waste management strategies
	Exploration of energy opportunities from waste and wastewater
	Facilitation of multi criteria decision analysis workshops for various decision scenarios including biofuels policy setting (UK), development of Quality of Life indicators to support budget allocation for the National Metrology System (UK) and minerals processing project prioritisation (Australia)

Brett’s academic research has focused primarily on the development of decision support frameworks, tools and modelling paradigms for supporting complex decision-making in the context of sustainability, in strategic, tactical and operational decision contexts. His work in this area draws on experience from chemical process engineering, multi criteria decision analysis techniques, network theories, natural systems and economics to develop robust and defensible system models. He has lectured on the undergraduate Chemical Engineering program in both Australia and South Africa on topics such as economics for engineers, the relationship between engineers, society and the environment, and complex decision making. He has worked on research based consulting projects funded by the United Nations Environment Program, the Water Research Commission, Eskom and the CSRP to name a few.

Email Brett on brett@tgh.co.za

DR PHILIPPA NOTTEN has an undergraduate and PhD degree in Chemical Engineering from the University of Cape Town in South Africa. Since completing her PhD Pippa has worked as a consultant in the USA, Denmark and South Africa. During this time she has contributed to a number of industry, EU- and UNEP-funded research projects within the broad topic areas of process technology assessment, LCA methodology development and environmental decision-making.

Recent projects include:
	An LCA of packaging options for Unilever South Africa (with the CSIR and University of Cape Town)
	Developing a model to quantify the carbon footprint of the coal value chain (for Anglo Coal Global)
	Quantifying uncertainty in input-output LCA databases (contribution to Prioritisation within the integrated product policy, Danish Environmental Protection Agency).
	Standards for Modelling LCA Data (CASCADE, EU project)
	LCA of coal-fired power generation technology options for brown-fields development (for Eskom, South Africa).

Pippa has extensive experience in the quantitative environmental assessment of primary industry systems. This experience was gained through her doctoral work, in which she developed a base-line assessment of the environmental performance of coal fired power generation in South Africa, which places the environmental impacts of this activity in the context of the technoeconomic and social dimensions of the industry using the tool of environmental life cycle assessment (LCA). Her research work has centred on LCA methodology, notably the development of a rigorous approach to the quantification of uncertainty in the information needed to support LCA.

Pippa takes an active role in the promotion and development of LCA, notably through her contribution to the UNEP/SETAC Life Cycle Initiative and her participation in international workshops and conferences. She is also LCA subject editor for the Journal of Industrial Ecology.

Email Pippa on pippa@tgh.co.za

DR YVONNE HANSEN has an undergraduate degree in Chemical Engineering from the University of Cape Town, and obtained her PhD from the University of Sydney, Australia. Her PhD focused on extending the capabilities of Life Cycle Assessment to include impacts from solid waste management, particularly in a mining, minerals processing and coal combustion context. This linked different types of modelling (both process and environmental) and included risk assessment elements.

Yvonne’s postgraduate experience provided her with an excellent grounding in a wide range of environmental issues, philosophies and approaches. Her subsequent postdoctoral work over the last 4 years has covered a number of methodologies including environmental modelling, Risk Assessment, impact prediction, multi-criteria decision analysis and Life Cycle Assessment in the context of the following sectors: mining, minerals processing, electricity generation, chemicals, building materials and bioenergy.

Yvonne has UK-based experience in LCA for the chemicals, metals and building materials industry sectors. This work had a particular focus on carbon footprints, embodied carbon and embodied energy as well as the relationship between carbon-added and value-added along complete supply chains. In addition, she has contributed to the development of a multi-criteria approach to assess the sustainability of bioenergy systems.

Yvonne also holds recent postgraduate qualifications in Life Cycle Assessment, including Input/Output analysis, hybrid LCA and state-of-the-art Life Cycle Impact Assessment, and Industrial Ecology from the Norwegian University of Science and Technology, Trondheim (NTNU).

Email Yvonne on yvonne@tgh.co.za

OUR NAME AND LOGO

Our company name is a tribute to our beginnings – a small, dynamic research group in the Department of Chemical Engineering at the University of Cape Town – the Green House.

Our logo alludes to the triple bottom line or the three tenets of sustainability – environment, economy and society and our attempt to find solutions that satisfy all three criteria for sustainability. The three circles also represent the arenas in which we work – strategy, technology and capacity.