A newly discovered water source could supply half of Africa's driest sub-Saharan country with 400 years of water, reports Matt McGrath of BBC. The new aquifer – called Ohangwena II – flows under the border between Angola and Namibia, covering an area of about 43 miles by 25 miles on Namibia's side. The water is up to 10,000 years old and cleaner to drink than many modern sources. Project manager Martin Quinger told BBC that the stored water could last 400 years based on current rates of consumption. Currently the 800,000 people living in the northern part of the country...