Prime Minister Shinzo Abe plans to depart Japan on Nov. 29 for the U.N. climate summit in Paris, diplomatic sources said, where he will join other world leaders.

Attention will likely be paid to how much Abe will pledge in financial aid on the opening day of the Paris climate conference from Nov. 30 to Dec. 11, given that developed nations have been asked to provide large sums of money for climate action in developing nations.

Developed countries have committed to raising $100 billion annually in climate finance for developing countries by 2020. Japan has dispersed some $20 billion from the government and private sectors over two years from 2013.

Japan has also decided to contribute $1.5 billion to the U.N.-backed Green Climate Fund to help developing countries, and in his speech at the summit on Nov. 30, Abe is expected to offer his view on how much Japan intends to scale up its contribution.

Abe is apparently keen to highlight Japan's involvement in setting new international rules on curbing global warming, in part because climate change is expected to be one of the topics at the Group of Seven summit to be held next May in Japan.

U.S. President Barack Obama, Chinese President Xi Jinping and Russian President Vladimir Putin also expected to attend the climate summit.

During his trip through Dec. 2, Abe will also visit Luxembourg, which currently holds the presidency of the European Union, for talks with his counterpart Xavier Bettel, the sources said Wednesday.

Given the tensions in the South China Sea, Abe and Bettel are likely to confirm the importance of the rule of the law and plan to deepen cooperation between the two countries, according to the sources.