Saihanba: Proof our planet can be healed

Before we visited the "Green Lung of North China" earlier this summer, I'd never heard of Saihanba.

A vast forest almost three times the size of Malta, this seemingly boundless ocean of green sits at the border of the Inner Mongolia autonomous region and northernmost Hebei province.

What makes Saihanba special is the way it was created - the land on which the forest now thrives was effectively reclaimed from the desert, starting 55 years ago.