At COP29, nations agreed on a deal to inject at least $300 billion annually in humanity's fight against climate change and to help poor countries cope.

Climate talks reach finance deal blasted as inadequate by developing nations. BAKU, Azerbaijan — Negotiators from nearly 200 countries agreed Saturday night in a nonbinding commitment that wealthy nations would aim to provide at least $300 billion annually by 2035 to help poorer nations suffering the most from climate change.

As nerves frayed and the clock ticked, negotiators from rich and poor nations were huddled in one room Saturday during overtime United Nations climate talks to try to hash out an elusive deal on money for developing countries to curb and adapt to climate ...