White House senior adviser Brian Deese is in Beijing this week preparing for President Obama’s visit to China next month, Umair Irfan reports for Scientific American. On the docket for Deese are meetings with Executive Vice Premier Zhang Gaoli and Xie Zhenhua, special representative for climate change, according to the White House.

The discussions will focus on key international environment agreement, namely the implementation of the Paris Agreement and a new amendment to the Montreal Protocol, a 1987 treaty limiting the emissions of ozone-depleting chemicals, Scientific American reports.

President Obama will meet Chinese President Xi Jinping on Sept. 2 for talks that the White House describes as “further evidence of the continuing bilateral engagement” on climate change before heading to the Group of 20 meeting in Hangzhou, China.