Press Trust of India: The combating of global warming could cost upto a whopping USD three trillion. However, given that the GDP of the world today is over USD 65 trillion , the amount is affordable, a top expert on global warming has said. Shailesh Haribhakti, Chairman of industry body Indian Merchant Chambers’ committee on ‘Combating global warming’ in a note said there are various estimates made on what might be the cost of achieving the 2050 target of 450 parts per million of CO2. These estimates …