Climate pledges have only inched forward since last year's summit, UN finds

Leaders will head to the COP27 summit in Egypt in less than two weeks with marginally more ambitious emissions commitments compared to COP26 last year.

Driving the news: A new UN report, released Wednesday, starkly shows the modest momentum towards meeting the world's climate targets during the past year.

The big picture: The UN analysis examines countries' voluntary emissions reduction and climate adaptation pledges, known as nationally determined contributions, or NDCs.

It finds that overall, the world is still falling far short of committing to the emissions cuts needed to meet the Paris targets....