Green Energy: Will biogas survive the road to 2030?

Her voice is loud. It rises above the din of splashing water, the grating and clanking of shovels scooping and throwing concrete mix into a water-filled wheelbarrow. The end result is a grey porridge subsequently dumped into a digester pit pre-laid with welded wire mesh.

The 29-year-old Matale is a biogas digester mason trained through a project in Botswana funded by the Global Environment Facility (GEF) and the United Nations Development Programme (UNDP).