Ban called the meeting between the two leaders “extremely constructive,” while noting it comes ahead of what is expected to be a “historic” General Assembly in September and follows a series of recent “diplomatic achievements” by Obama and the US Government such as the Iranian nuclear deal and the normalization of diplomatic relations with Cuba.

“All these are truly historic diplomatic achievements,” the Secretary-General said in remarks to the press following his meeting.

“The United Nations continues to stand working with you and the US Government. We really appreciate your strong leadership and support, and strong, generous humanitarian assistance to many places of conflict.”

On climate change, Ban highly commended Obama’s strong commitment “since day one in his office up to now,” and said he would continue to count on his leadership until countries are able to reach an international agreement on climate change in December in Paris.

In that regard, he congratulated the President on his “visionary and forward leadership” on the Clean Power Plan that he announced this week which aims to reduce carbon pollution from power plants and emphasizes the use of renewable energy sources.

“I think this Clean Power Plan powers economies and generates jobs,” said Ban, adding that it can also generate huge dividends in the US economy as well as impact other countries.