The Serapium Forest is irrigated with treated wastewater, which provides the massive plants with a natural source of fertilizer. “The wastewater is rich in phosphorus and nitrogen,” explains Hammad — a naturally occurring MiracleGro once separated from human fecal matter. The trees can’t get enough of it. REASONS TO BE CHEERFUL
Read MoreSince the 1970s, development initiative Sekem has been revitalising the hot, arid sands of a once untouched part of the Egyptian desert, transforming it into fertile land. In 1977, award-winning social entrepreneur, philanthropist and drug designer Dr. Ibrahim Abouleish started the initiative an hour from Cairo after a vision. ATLAS OF THE FUTURE
Read MoreThere is a wall appearing across the African continent, dividing north and south. But this wall isn’t to keep migrants out, or to keep smuggled goods in check. It is holding back sand. BBC NEWS
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