jean-marc gravellini works for the sahel alliance, an initiative promoting stability and developmentnin the regio. he s says population growth is e of the biggest problems currently facing africa. >> it's a very, very, very huge challenge. fofor the peoplele in regardrd f their knowledge, they don't understand the number of children in a famimily can be n issue. >> the figures give cause for concern. 4.6 billion people currently live in asia. but, according to forecasts, africa's population is set to grow by nearly 3 billion by 2100. so, when we say the global population is growing, what we mean is essentially africa's populationon is growing.g. what c can be done to put the brakes on population growth? in the mid-1990's, the fertility rate in ethiopia was seven children per woman. the authorities recognized the problem and invested heavily in awareness campaigns. researchers agree that education is the solution. young women neneed to know abot coraceptptioand d makenformemed decisions about having childldr. recent years have seen the fertility rate in the country fall to o four chil