Climate change: वायुमंडल में 18वीं सदी के स्तर से डेढ़ गुना हुआ CO2 | CO2 levels in the atmosphere is 50 percent higher than 18th century Viks news18.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from news18.com Daily Mail and Mail on Sunday newspapers.