I am an engineer, hydrologist and environmental scientist. My strength is a broad background in science, technology and policy.
I write about development and the interface with the natural world. My interests include water treatment technology – everything from the CRAPPER low-cost toilet to ion exchange equipment for recycling acid mine drainage. My hydrological background involves an ongoing interest in global ocean and atmospheric circulation and in hydrodynamical modelling. Environmental science expands that to biogeochemical cycling – the movement of substances through global environments – and to energy technology, economic development, climate policy, environmental risk assessment and environmental law and management.