If human intervention has caused climate change, with human intent and intellect and with new research and technology, we will win this war against climate change, Mr Prakash Javadekar the Minister of Environment, Forest and Climate Change said today in Delhi. He was addressing a gathering on 30th Anniversary of the Vienna Convention and 21st International Day for Preservation of Ozone Layer. <br/><br/>Number of competitions were organized for school children as part of the celebration and the prizes to the winners were presented at the function. A booklet titled "Montreal Protocol: India's Success Story" was released on the occasion.<br/><br/>The Vienna Convention for the Protection of the Ozone layer was signed in 1985, and India became Party to the Vienna Convention in 1991. The UN General Assembly in 1995 adopted a resolution which proclaims September 16 as the International Day for the preservation of the Ozone layer since than, this day is celebrated every year as the International Day for the preservation of the Ozone layer.