"There is an urgent need for policy intervention to prevent degradation of ecology in the country in general and the Himalayan states in particular," he said, following an interactive meeting with top officials of various state departments here.

"Such a policy intervention should put into place a comprehensive approach to prevent the climate change," Sharan, who recently visited Himalayan states like Jammu and Kashmir, Himachal Pradesh and Uttarakhand to get feedback on the ground reality of ecological conditions said.

Sharan, who was briefed about the impact of global warming on the glaciers and snow-capped mountains in Sikkim, said the states falling under the Himalayan mountain range have witnessed adverse impact of global warming and should adopt common approach for carrying out development works in an environmentally sustainable manner.