(i) Chernobyl Disaster : The Chernobyl disaster was a worst radiactive accident occurred on April 26, 1986 at Chernobyl nuclear plant located in Chernobyl city of Ukraine. It is a nuclear power generation station from where radioactive material drifted over the surrounding area causing more than 9,000 people death due to side effect of radiation. It lead to a series of genetic disorders or changes in the areas of Ukraine, Belarus and Russia.
(ii) Chipko Andolan Movement : It is a tree-embracing movement started in April 1973 in Mandal Village in Uttrakhand against felling of trees by forest contractors. It is a spontaneous peoples movement started by the village women based upon non-violent resistance reflecting awareness of the local people against environmental degradation. Mr. Chandi Prasad Bhatt and Mr. Sunderlal Bahuguna led the movement from the front.