Experts said poor states need at least $1 trillion per year by the end of the decade to move to greener energy and protect against extreme weather.

The next major United Nations meeting on climate change, known as COP29, is about to get underway in Baku, Azerbaijan. These annual meetings are the key international summits as the world attempts to address the unfolding climate crisis.

The main task for nearly 200 countries at the U.N.'s COP29 climate summit is to broker a deal that ensures up to trillions of dollars in financing for climate projects worldwide. Here is what you need to know about the Nov.