NDTV's Greenathon, a 25-hour telethon for the environment was a raging success in terms of raising money for TERI's light a billion lives campaign as well as creating awareness about the environment. However, there are those who say the carbon footprint of the event was immense. Well we now weigh in the pros and the cons. The event was grand but not grander than the aim of saving the planet. So has all the sweat and blood, the muse and the music paid off? Was the cost of emissions to host an extravagant gala worth the impact for a greener future? We give you the facts you be the best judge.