Welcome to EarthHack

Hi! I’m¬†David McNamara, a geospatial professional with special interest in environmental and social issues.

I believe¬†creative use of information technology and permaculture ‘hacks’ can help solve some of the planet’s most pressing issues. I love finding imaginative ways to visualise and explore data and complex systems.

Have a look around and please get in contact if you think we could work together.


Decision Support for Small Earth Dams using Web GIS

A dissertation submitted in partial fulfilment of the requirements of the Masters Degree in Geographic Information Systems of the University of Leeds.


The benefits of creating small earth dams for retaining water, both surface and subsurface, are multiple. The reserved water can be used for domestic and agri- cultural applications. Natural ecosystems will benefit as a result of the improved hydrological conditions, often helping to halt or reverse desertification by slowing down the large water cycle and preventing water runoff in the rainy season. Im- proved water retention improves conditions in drought-affected ASAL regions and lifts the burden of water carrying from women, allowing more time for family and education.

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