Crude oil from a leaking ExxonMobil pipeline in southern Nigeria has begun to creep into neighbouring rivers, causing economic and environmental damage.
A newly discovered water source in Namibia could have a major impact on development in the driest country in sub-Saharan Africa.
Estimates suggest the aquifer could supply the north of the country for 400 years at current rates of consumption. Scientists say the water is up to 10,000 years old but is cleaner to drink than many modern sources.
However, there are concerns that unauthorised drilling could threaten the new supply.
Westori reveals global news stories that may have escaped the mainstream media's attention.