Without mentioning the United States specifically, amid reports President Donald Trump is poised to announce his country will withdraw from the agreement, he said China has been "actively promoting the Paris agreement and we were one of the first countries to ratify the Paris agreement".
Speaking on a visit to Germany, Premier Li Keqiang said fighting climate change was in China's own interest.
A December 2016 study released in Nature Climate Change journal said a USA delay could make the Paris Agreement targets "unreachable".
The senator said the Obama administration negotiated the agreement to circumvent the Senate's advise and consent power on worldwide treaties because it knew it was too unpopular and damaging to US interests to ratify.
The decision to withdraw from the climate accord was influenced by a letter from 22 Republican U.S. senators calling for an exit, Axios reported. We are one of the two largest carbon emitters, with China. But that treaty was U.S. Senate-ratified.
The leaders of Denmark, Finland, Iceland, Norway and Sweden say the 2015 Paris Agreement to reduce global warming was a commitment "to our children".
Well, we'll see later today, but the main decision or the thought decision is that he will pull out of the Paris Accord.
The Paris climate agreement was established during a 2015 conference in the French capital.
A USA decision to withdraw from the accord could further alienate American allies in Europe already wary of Trump and call into question US leadership and trustworthiness on one of the world's leading issues.
Reports of the impending move by the American president triggered statements of support for the climate accord from scores of world leaders.
Business leaders say the Paris deal, also called COP21, will help generate new jobs, limit damage from climate change and help assert American leadership on the global stage. In particular, he positioned himself as a staunch advocate for fossil fuels, nixing climate change funding from his proposed budget and scrapping rules that discourage pollution and boost renewable energy.
He added: "Fighting climate change is a global consensus, it's not invented by China. and we realize that this is a global consensus agreement and that as a big developing nation we should shoulder our worldwide responsibility".
Carbon dioxide stays in the air for 100 years and about one-fifth of what's accumulated in the atmosphere over the last century came from the United States, more than any other country.
Mr. Trump repeatedly called climate change a "hoax" during the presidential campaign.
"The U.S. has successfully bent its greenhouse gas emissions curve", Kate Larsen, of the economics research team Rhodium Group, told Christopher.
Trump promoted his announcement Wednesday night on Twitter, after a day in which USA allies around the world sounded alarms about the likely consequences of a US withdrawal. The other countries are Syria and Nicaragua. Embattled tech contemporary and Uber CEO Travis Kalanick withdrew after Trump's temporary travel ban on people from certain countries in the Middle East stirred controversy.
The Natural Resources Defense Council, an environmental group, estimates that unchecked climate change could cost the USA economy nearly $2 trillion per year in current dollars by 2100.
Meetings inside the West Wing about Paris have been contentious, sources told CNN, as aides expressed their deep grievances over the climate agreement that President Barack Obama helped broker with almost every country. And the final decision may not be entirely clear-cut: Aides were still deliberating on "caveats in the language", one official said.
California has also previously said it would help pick up the slack for any backdowns by the USA president on climate change.
"I will be announcing my decision on the Paris Accord over the next few days".