Earth’s ‘Barren’ Deserts Actually Have Millions of Trees, Surprising Data Reveal – ScienceAlert

At first glance the apparently barren expanses of the Sahel and Sahara deserts feature little greenery, but detailed satellite imagery combined with computer deep learning has revealed a different picture.
In fact, some 1.8 billion trees dot parts of the West African Sahara and Sahel deserts and so-called sub-humid zone, a previously uncounted bounty that overturns previous assumptions about such habitats, researchers say.
“We were very surprised that there are quite (so) many trees growing in…

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