Are we running out of frankincense?

Last updated at 15:26

It would not be Christmas without a bit of gold, frankincense and myrrh.

But it seems there is a danger that supplies of frankincense might have disappeared by the end of the century.

Scientists say fires, disease and cattle grazing have led to a decline in numbers of the tree which produces the resin.

Frankincense is collected from Boswellia trees and is used in religious rituals and the perfume industry.