What was the origin of the Chipko movement, which gained popularity in India for its tree conservation efforts?

The Chipko movement is an environmental movement that originated in the village of Reni in the Garhwal Himalayas of Uttarakhand, India, in the 1970s. The movement was initiated to protect trees from being felled by hugging them and not allowing their cutting. It was started by a group of local women led by Sunderlal Bahuguna and became a significant milestone in India's environmental conservation efforts.