This report is ridiculous.
Presuming climate change happens, land which is currently unsuitable for these beans will suddenly become viable, and this crop is too valuable for the potential new growers to shrug their shoulders and say, "meh"
This bean wont be extinct unless the entire world becomes unsuitable, and since this is a warm weather crop, you'd need a new ice age for that, not global warming.
<ptp> how many emo kids does it take to change a lightbulb?
<Willy> HOW MANY?!
<ptp> none they just sit in the dark and cry