Alex Hetherington (BA MSc) is a leading
South African environmental sustainability strategist. He is skilled in gearing companies to leverage benefit from their environmental actions, ensuring both environmental and economic bottom-line profit. In addition, Alex is a founding member of the carbon management consultancy, Carbon Calculated, and a shareholder in sustainable development photographic archive, Earthstock.

Earth Stock

Earthstock is a specialist photographic archive dedicated to imagery of sustainable development. It is managed and commercially-driven through Africa Media Online. or

Carbon Calculated

Carbon Calculated works with clients who have recognised the need to understand their carbon risks and opportunities and are willing to take up the challenge of accurately monitoring their carbon emissions. Alex is a founding member.


Alex's blog aims to provide news, information and research relating to environmental sustainability. It supports the belief that environmental sustainability is not only a corporate imperative, it makes business sense too.