People from around the world are beginning to gather at the gateway of the Amazon in Belem, Brazil, for the 30th annual United Nations climate summit, the Conference of the Parties, known less formally as COP30.

The aim is simple, but lofty: for countries to work together to stop the worst effects of human-caused climate change.

That's a goal many experts say is slipping out of reach. But the stakes are high. Climate change is already escalating disasters that mean life or death for billions of people around the world, and delaying action will only worsen the problem.

Here's what you need to know about COP30.

A spotlight is on Indigenous peoples, forests and agriculture

With the world's largest rainforest on its doorstep, many have lauded Belem as well-positioned to highlight the ro

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