"There's mandatory reporting. There is a universal system by which every country, all 186, each of whom have submitted an independent plan, have to report on what they're doing, what their emissions are, on the total carbon print," Kerry said in an interview to the Fox News.
"And that reporting will be used by one country to measure against another and it will be a great way of exchanging information about technologies, about approaches," he said.
"So it has to be voluntary. And a lot of nations resent that, but we have accepted that, because we believe it's going to move the marketplace, and already you see countless new technologies, a lot of jobs being created," he said in response to a question.
Kerry said the US President Barack Obama was determined to get an agreement here that would move the world in the right direction.
"So the best thing we can do in an effort to try to change people's thinking, is to do this mandatory reporting requirement. And the mandatory reporting requirement has to be updated every five years," he said.
Every five years, it is mandatory that countries retool their reduction levels in order to meet the demands of meeting the curve of reduction to which they have committed.
"So we did the best we could to set the world on a new course towards energy independence, alternative renewable energy, towards a lower carbon footprint, greater health, greater security," he said.
The US President deserves enormous credit for his outreach to China, putting the two largest emitters and the two largest economies together to set an example to the world, he said.
