Study Finds Pattern of Severe Droughts in Africa

With so much of Africa depending on rain to water the crops, scientists are worried that the next drought will destroy what little stability is left on the continent. The last "unusual" drought lasted for over three centuries. Normal patterns however, suggest that a severe drought occurs every 30 - 65 years. The scientists have been studying drying lake beds to get their data. They have said that their goal is to predict current drought and weather patterns for the next few decades to avoid having millions of people die from lack of water.