World

Chinese, Iranian leaders to speak at UN summit focusing on fixing world's major problems

  • Vietnam President Truong Tan Sang addresses the 2015 Sustainable Development Summit, Friday, Sept. 25, 2015, at the United Nations headquarters. (AP Photo/Frank Franklin II)

    Vietnam President Truong Tan Sang addresses the 2015 Sustainable Development Summit, Friday, Sept. 25, 2015, at the United Nations headquarters. (AP Photo/Frank Franklin II)  (The Associated Press)

  • Iran’s President Hassan Rouhani, left, walks with United Nations Secretary-General Ban Ki-moon, right, Saturday, Sept. 26, 2015 at United Nations headquarters. (AP Photo/Bryan R. Smith)

    Iran’s President Hassan Rouhani, left, walks with United Nations Secretary-General Ban Ki-moon, right, Saturday, Sept. 26, 2015 at United Nations headquarters. (AP Photo/Bryan R. Smith)  (The Associated Press)

  • Iranian President Hassan Rouhani addresses the 2015 Sustainable Development Summit, Saturday, Sept. 26, 2015 at United Nations headquarters. (AP Photo/Seth Wenig)

    Iranian President Hassan Rouhani addresses the 2015 Sustainable Development Summit, Saturday, Sept. 26, 2015 at United Nations headquarters. (AP Photo/Seth Wenig)  (The Associated Press)

The presidents of China and Iran are among world leaders addressing a United Nations summit Saturday after the gathering unanimously approved an ambitious blueprint to tackle more than a dozen major global issues.

Goals of the 15-year road map endorsed Friday by the U.N's 193 members include eradicating extreme poverty and fighting climate change.

The new goals are expected to cost between $3.5 trillion and $5 trillion every year until 2030. How to implement them is expected to dominate the three-day summit.

After speeches by presidents Xi Jinping of China and Hassan Rouhani of Iran on Saturday, President Barack Obama and the leaders of Britain and France will address the meeting on its last day Sunday.