Chipko movement is connected with

• The Chikpo movement was held in 1973 where the villagers in RENI protested against commercial timber harvesting by hugging the trees and preventing them from being cut. 
• As this was in an effort to save the forests from being cut off, which would be devastating to India, the correct answer is Forest conservation.
• The origin of the Chipko movement is in Uttrakhand. In Uttarakhand, it was started by Sunderlal Bahuguna.

Hence, option B is the correct answer.