Sally-Anne Käsner

Sally-Anne Käsner is an Executive Associate at JG Afrika (Pty) Ltd with a background in Sustainability and Baseline Reporting, Environmental Impact Assessments, Integrated Waste Management Plans and Environmental Auditing. Her focus and passion lies within waste management with particular interest in waste minimization practices and material recycling


Bonté Edwards

Bonté Edwards is an Associate at JG Afrika (Pty) Ltd with a background in Environmental Impact Assessment, Environmental Auditing, Environmental Law, Environmental Education, Resource Efficiency and Cleaner Production and Environmental Management Systems (ISO14001).

Bonté studied Biochemistry at the University of Stellenbosch and obtained her BSc (Biochem) Honours in 1997. In 2000, she undertook an MSc in Environmental Biotechnology at Rhodes University, completing in 2001. She has been involved with EcoStandard since the development of the assessment tool and criteria, and is one of the assessors.


Tamryn Heydenrych

Tamryn Heydenrych is a Senior Environmental Scientist at JG Afrika (Pty) Ltd with a background in Environmental Management.

Tamryn studied Environmental and Geographical Science at the University of Cape Town and obtained her BSc (Physical Geography) Honours in 2006.

She has a background in Environmental Impact Assessments, Environmental Management Programmes, Environmental Auditing, , project management and the review of Green Building Council of South Africa assessment applications for existing buildings. Tamryn  has been involved with EcoStandard from 2014 and is one of the assessors.


Proffesor Harro von Blottnitz

Professor Harro von Blottnitz holds a BSc (ChemEng), Cape Town, BSc Hons O.R., Unisa, MSc (Eng), Cape Town and a Dr-Ing of Aachen University of Technology, Germany. He is currently a Professor in the Department of Chemical Engineering with main interests in the processing of biomass to fuels and the life cycle assessment of engineered processes to identify environmental improvement opportunities. His group also applies process and systems engineering skills to the closure of substance cycles in the economy, and to minimise environmental impacts by wastes and emissions, especially in South Africa’s resource processing industries.



Simon Gear

Simon Gear is a presenter and educator as well as an environmental advisor and consultant with an Honours degree in climatology

Simon runs Kijani Green Energy, an advisory consultancy providing environmental and financial advisory services throughout Southern Africa. Simon is a best-selling author and writes a wide range of columns.


Grace Stead

Grace Stead is a sustainability strategist with a background in town planning – she obtained her BASc in Town and Regional Planning Honours Degree in 1993 from Potchefstroom University. She became actively involved in promoting sustainable development in 2000 when asked to be the Local Agenda 21 (LA21) Co-ordinator for the City of Tygerberg and later Cape Town.

She has worked in in local government and has received international acclaim, shewas very involved with the WSSD in 2002 and the ICLEI World Congress in 2006 and developed the initial Green Building Guidelines for the City of Cape Town.

She established Steadfast Greening to focus on promoting sustainable development in a practical way, with a strong focus on providing support to sustainability teams. She is a founding member of the Event Greening Forum, which is an NGO set up to promote sustainable eventing in South Africa.



Sean Doel

Sean Doel has a BSc (Hons) in Geology (UCT), BSc in Biochemistry (UNISA), MSc in Environmental Geochemistry (UCT) and postgraduate training in Environmental Toxicology from RMIT University in Australia.

Sean is one of South Africa’s leading environmental risk management specialists, with experience in both government and private sector work. He has worked at national policy level as well as on a wide range of environment and sustainability projects as both a specialist and project director.

He has chaired the development of the materials section of the GBCSA Retail Rating Tool as well as acting on the GBCSA PVC Technical Committee.

In 2008 Sean cofounded Simply Green, a lifestyle magazine dedicated to sustainable living, and in 2010 was awarded the Magqubu Ntombela / Ian Player Cub Award at the 22nd annual SAB Environmentalist and Environmental Journalists of the Year Awards for his role as Founding Editor of the magazine.


Michelle Ludwig

Michelle Ludwig is a principle green building consultant for Ludwig Design Consulting. She gained international experience in green building design and rating systems with the firms HOK and William McDonough + Partners and now caters to the South African context.

Michelle is a Green Star South Africa Accredited Professional, Assessor, GBCSA Faculty Member and has contributed to the development of many Green Star Tools. Michelle holds a BSc, Interior Architecture Design, Masters of Industrial Design and a Post Graduate Diploma, Higher Education Studies.


Mark Dittke

Mark Dittke holds a Masters Degree in Environmental Law (LL.M) from the University of Cape Town and is currently the managing attorney for Mark Dittke Attorney, a law firm specialised in Environmental, Health and Safety law.

He provides expert legal services to the corporate, industrial and government sectors, as well as consultants, other law firms and NGO’s.