The continent's population growth is due to persistent high levels of fertility and the recent slowdown in the rate of fertility decline, notes a statement on the report. (treehugger.com)
It argues that these have been understated; in some cases persistent substantial population growth, in others rapid fertility decline leading to severe levels of population aging. (sciencedaily.com)
The study found no groundwater contamination or soil - fertility decline after three years, while the presence of trace metals remained low. (scientificamerican.com)