Ecology of Himachal has been given importance during the last few years. Industries being the cause of water or air pollution are not encouraged. Every industrial project has to be passed by the clearance of the Environment Protection Organization before its establishment. Himachal is facing a number of difficulties in the advancement of industries. Lack of means of dependable transport and poor accessibility was one of the major drawbacks. Other problems faced by the state were the poor mineral resources, non-availability of infrastructure and communication facilities, shortage of capital and lack of modern skills. The only plus point of the state was the ample availability of electricity. Parwano, Barotiwala, Baddi, Paonta Sahib, Mehatpur, Shamshi, Nagrotu Bagwan, Bilaspur, Reckong Peo and Sansar Pur Tera are some of the industrial areas of the state at present. As the dust free climate of Himachal is extremely suitable for the setting up of electronic industries, many electronic complexes have been established at Solan, Mandi, Hamirpur, Shogi, Raga-Ka-Bagh, Chamba, Ambi, Taliwala and Keylong.