Developing a map of African countries' water poverty levels offers a transparent analysis for policymakers, governments and organisations that deal with water issues.
It's a dirty scientific job – but it could save lives.
Progress in terms of water and sanitation has traditionally favoured those with money. But the hope with the SDG's is that this gap will be plugged in the future.
There have been modest improvements in water and sanitation provision in Africa, but there is still a long way to go. Most citizens rate their governments’ performance in this sphere poorly.