Sikhs aim to plant million trees as 'gift to the planet'

Global project will mark 550 years since birth of religion's founder, Guru Nanak

Sikhs around the world are taking part in a scheme to plant a million new trees as a "gift to the entire planet".

The project aims to reverse environmental decline and help people reconnect with nature as part of celebrations marking 550 years since the birth of the founder of Sikhism, Guru Nanak.