date:Jan 17, 2019
er cent - that's way above normal extinction risk figures for plants, Aaron Davis, head of coffee research at Kew, told AFP.
It's up there with the most endangered plant groups. In another way, it's hardly surprising because a lot of species are hard to find, grow in restricted areas ... some have a population only the size of a football pitch.
Global coffee production currently relies on just two species: arabica and robusta.
Arabica, prized for its acidity and flavour, accounts for roughly