Cooperation on climate change between China and the United States is "very successful", said Xie Zhenhua, China's special representative on climate change affairs.

Xie made the remarks on the eve of the seventh China-U.S. Strategic and Economic Dialogue.

China and the United States have engaged in policy dialogue on climate change for more than seven years and reached consensus on the science of climate change, Xie told an event celebrating private-sector engagement in advancing the China-U.S. Climate Change Working Group.

Xie noted that the world must work together to ensure the success of the Paris climate talks, scheduled for December this year, by reaching a multilateral deal that is acceptable to all parties.

U.S. climate envoy Todd Stern gave a speech on the same occasion, in which he commended: "sometimes we agree, sometimes we argue, but we always move forward together."

"It's obvious to everyone cooperation between the United States and China on climate change is quite strong now," he added.

The seventh China-U.S. Strategic and Economic Dialogue is set to start on Tuesday in Washington. Climate change is one of the issues high on the agenda of the two-day event.