The financing plan, which calls for $300 billion per year in support for developing nations, was immediately assailed as inadequate by a string of delegates.

United Nations climate talks adopted a deal to inject at least $300 billion annually in humanity's fight against climate change, aimed at helping developing nations cope with the ravages of global warming in tense negotiations.

Negotiators from nearly 200 countries agreed early Sunday 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.