PARIS: President Francois Hollande of France, host of a crucial year-end conference to agree a global pact on climate change, said Tuesday the meeting’s success was “possible, not certain.”

“There are still a few issues that have to be settled,” the French leader told Europe1 radio during an official visit to China.

“Yes, failure is still possible, but today I am confident,” said Hollande.

The November 30-December 11 UN summit in Paris will be opened by world leaders, including US President Barack Obama, China’s Xi Jinping and Narendra Modi of India.

The aim is to unite all the world’s nations in a single agreement on tackling climate change, with the goal of capping warming at two degrees Celsius (3.6 degrees Fahrenheit) over pre-Industrial Revolution levels.