Dreadlocks go back "thousands and thousands of years," according to professor Bert Ashe, who also shares his own dreadlocks stories.
Coffee growers in Central America are facing a crisis because of a fungus that’s affecting the crop. The “roya” leaf rust fungus makes the plants lose their leaves and destroys some of the coffee beans.
In Guatemala, two-thirds of the coffee is affected and hundreds of thousands of jobs are at risk.
The BBC’s Humphrey Hawksley reports.
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