India is the world's fourth most polluting nation, emitting 583 million tons of CO2 annually, according to CARMA
New Delhi - World's two fastest growing economies, China and India, have earned the dubious distinction of being home to some of the biggest polluting firms across the globe, according to a list published by Carbon Monitoring for Action (CARMA), a product of the Confronting Climate Change Initiative at the Center for Global Development, an independent think-tank located in Washington, DC.


China's Huaneng Power International (292 million tons) rates as the world's worst polluter while India's state-run National Thermal Power Corporation or NTPC (182 million tons) occupies the third position worldwide in terms of carbon dioxide (CO2) emission.
In the top ten list, Eskom (214 million tons) of South Africa has grabbed the second spot.
China's Huadian Group Corporation, China Power Investment Corporation and North China Grid Co. Ltd., all of which are supporting the blistering pace of China's economic growth, occupy fourth, fifth and ninth positions respectively.
Two U.S. power firms - Southern Co. (No.6) and American Electric Power Co. Inc. (No.7) - and Germany's two power firms - E.ON AG (No.8) and RWE AG (No.10) round up the list.
In India, 17 of the 20 biggest polluters happen to be public sector enterprises, including NTPC.
The three private sector firms among India's 20 biggest CO2 emitters include - RPG group's CESC Ltd, Aditya Birla group's Hindalco Industries and Anil Ambani group's Reliance Energy at 16th, 18th and 20th positions respectively.
Suzlon Energy, Adani Group, Larsen and Toubro, Torrent Power, Ultratech Cement Ltd, Uttar Pradesh Jal Vidyut Nigam and Tehri Hydro Development Corp are some of the firms in power generating business in India with zero CO2 emissions.
According to CARMA's massive database, which contains information on the carbon emissions of over 50,000 power plants and 4,000 power companies worldwide, Australia is the world's worst polluter per capita, producing five times as much carbon from generating power as China.
In terms of total carbon emission in a country, the US was named as the most polluting nation with 2.8 billion tons of emissions, followed by China (2.7 billion) and Russia (661 million) at No.2 and No.3 respectively. India is at No.4 with 583 million tons, while Japan occupied the fifth rank with 400 million tons.

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