New Delhi, Feb 7 (Inditop.com) Developing countries will not be on board any future agreement at the forthcoming United Nations Climate Change conference in Mexico if there is no clarity on how the equity for climate change emissions is defined, Union Minister for Environment and Forest Jairam Ramesh said Sunday.

India, along with United States, Brazil, China and South Africa, was one of the architects of the non-binding Copenhagen accord, which was greeted with disappointment in the absence of a legally-binding deal.

The next meeting of the Conference of Parties of United Nations Framework on climate change is scheduled for December in Cancun, Mexico.

“If we do not have clarity on how equity is enshrined in flow (of emissions), we will not have developing countries on board,” Ramesh said at the 10th Delhi Sustainable Development Summit here.

He observed that while the issue of historical responsibility – the main culprits producing emissions for the last 200 years – has been defined, “we have not been able to define the flow”.

“This is important,” he added, “as those who had emitted in the past may not be the biggest emitters in the future”.

Ramesh noted that if there had to be a legally binding agreement, then “it should be anchored in common and differentiated responsibility”.