Speaking to reporters here, Ramesh said, "India had partial success at the Copenhagen negotiations."
He was here on a day's visit to review the results of pollution control efforts of different government agencies in the river Ganga.
He rejected the opposition claim that Copenhagen was a failure.
He said, "The Copenhagen accord has certain inbuilt hazards and the developing world, especially India, has to be wary on those accounts."
Ramesh said, "The foremost risk is that the developed world could demand an end to the Kyoto Protocol."
"Finally, the accord is a partial victory for BASIC Group comprising Brazil, China, India and South Africa when it wrested three important benefits from President Obama," he added.