"At the meeting, President Hu will call for stronger international efforts on climate change and introduce new measures that China is taking," China's Vice Foreign Minister He Yafei told a press briefing last week.

"The president will fully elaborate on China's stance and proposals on climate change and what China is doing about it," He said.

Chinese President Hu Jintao (Front, 2nd R) shakes hands with a Chinese diplomat in the United States upon his arrival at New York, the United States, on Sept. 21, 2009. Hu Jintao arrived here Monday for a UN climate change summit and other UN meetings. He will also attend a financial summit of the Group of 20 (G20) in Pittsburgh scheduled for Sept. 24-25. [Ju Peng/Xinhua]

The vice minister expressed the hope that "the summit would send a positive signal," emphasizing joint efforts to make the Copenhagen conference a success.

During the general debate of the UN General Assembly Wednesday, Hu is expected to elaborate on China's stand on major global and regional issues.

In his speech, President Hu will outline China's ideas about how to safeguard world peace, boost common development, promote mutual benefit and seek harmonious co-existence, said Chinese Foreign Ministry officials.

On Thursday, President Hu will attend a special session of the UN Security Council on nuclear non-proliferation and disarmament, which is proposed and chaired by US President Barack Obama

"The session will focus on nuclear non-proliferation and nuclear disarmament broadly, and not on any particular countries," US Ambassador to the UN Susan Rice said on Sept. 2.

Chinese diplomats said that President Hu will elaborate on China's ideas of realizing common security through a win-win approach to mutual benefits.

Hu will put forward China's propositions on nuclear non-proliferation and disarmament, peaceful use of nuclear power, nuclear security and other issues concerning the international community, they said.

Following the UN meetings, President Hu will fly to Pittsburgh for the G20 summit.

At the summit, Hu and leaders of other G20 members will review the progress made since the Washington and London summits and discuss further actions to assure a sound and sustainable recovery from the global financial and economic crisis.

"The Pittsburgh summit is an important opportunity to continue the hard work that we have done in confronting the global economic crisis, and renewing prosperity for our people," Obama said on Sept. 8.

"Together, we will review the progress we have made, assess what more needs to be done, and discuss what we can do together to lay the groundwork for balanced and sustainable economic growth," he added.

The Pittsburgh summit is the third since the ones in Washington last November and in London in April this year.

The G20 was formally established in 1999 to bring together major industrialized and developing economies to discuss key issues in the global economy.

The G20 consists of China, Argentina, Australia, Brazil, Canada, France, Germany, India, Indonesia, Italy, Japan, Mexico, Russia, Saudi Arabia, South Africa, South Korea, Turkey, Britain, the United States, and the European Union.

China expects the summit to achieve positive results in macroeconomic policy coordination, reform of international financial organization, development and measures against protectionism, said Chinese Vice Foreign Minister He.