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The Man Who Planted Trees before his time

Our classic book is fiction, the kind of fiction that tells truth in its own way. Now nature newsblog reports that it was telling truth in another, now-scientifically established way, all along. Not really a surprise, but still, it’s nice to get the nod. “Which truth?” you ask.
Satellite observations suggest vegetation encourages rainfall in Africa. More rain makes for more plant growth: that much is obvious. But now a statistical study of satellite images has added weight to the reverse notion: more plants also make for more rain.