Clean energy innovation or illusion? JETP climate funds

They were billed as an ingenious new way of helping developing countries ditch planet-polluting coal, promising an injection of billions from wealthy governments looking for new ways to tackle carbon emissions.

The big emitters: the United States

The United States, the world's second largest emitter of greenhouse gases, has pledged to halve its emissions by 2030 compared to 2005 levels—but so far is failing to stay on target, analysts say.

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