Pakistan's forests are shrinking rapidly because of illegal logging.

Coupled with land erosion and the threat of climate change, one northern province has decided to start a massive tree-planting effort.

They plan to plant a billion trees over the next four years, and are investing approximately $150m into the scheme.

Nursery owners in the region believe the initiative will not only boost the their own businesses, but also bring in more people to invest in the industry.

Al Jazeera's Kamal Hyder reports from Khyber Pakhtunkwa province.