By Valerie Volcovici and Lisandra Paraguassu

BELEM, Brazil (Reuters) -Dozens of country leaders will gather on Thursday in Brazil’s Amazon city of Belem ahead of the annual U.N. summit on climate change, hoping to advance progress despite growing concerns that multilateral cooperation is on the brink.

The COP30 conference marks three decades since global climate negotiations began. In that time, countries have curbed the projected climb in emissions somewhat – but not enough to prevent what scientists consider extreme global warming in the next few decades.

Over two days, Brazil’s COP30 presidency has lined up 53 heads of state to deliver speeches, along with more than 40 subnational leaders. U.N. Secretary-General Antonio Guterres is expected to be among them.

Missing from the lineup

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