(1) What is the purpose of all fog harvesting projects that are being conducted by the (a) Water Research Commission and (b) Department of Water; (2) whether the Department of Water has procured any fog harvesting technology for use in any of its projects since 1 April 2010; if not, why not; if so, what are the relevant details; (3) whether the projects on fog harvesting in which the Water Research Commission is involved exist for the purpose of developing fog harvesting technology; if not, what is the position in this regard; if so, why is the Water Research Commission involved in such projects when this technology already exists in the private sector?