In a quarter century, at the rate Nigeria is growing, 300 million people - a population about as big as that of the present-day United States - will live in a country the size of Arizona and New Mexico. In this commercial hub, where the area’s population has by some estimates nearly doubled over 15 years to 21 million, living standards for many are falling.
Unlimited access to BostonGlobe.com for only 99 cents for the first 4 weeks.Sign up
Are you a home delivery subscriber?
Get FREE access as part of your print subscriptionStart Here
Contact us for help