This is one argument that simply won't go away. Environmental researchers writing in the Science journal want the trade in rhino horn to be legalised, by selling shavings harvested from the horns of live rhinos in the hope that poachers won't just hack their faces off instead.
A few weeks ago I returned to England after scaling Mount Kilimanjaro, the highest peak in Africa and the world's highest free-standing mountain, almost 6,000 metres or 20,000 feet high!