By SETH BORENSTEIN and JAMEY KEATEN
DUBAI, United Arab Emirates (AP) — Dozens of world leaders said they know the planet’s dangerously overheating and they are trying to keep it from getting worse. The next step is to turn their soaring rhetoric voiced at the beginning of the United Nations climate conference into action. In the first of two days of the two-week summit, presidents, prime ministers and royals from nations rich and poor trotted up to the microphone Friday to lay out commitments to reduce how much their countries spew heat-trapping gases and asked their colleagues to do better. Critics, advocacy groups and even some leaders themselves said that the words of promise must be followed by deals hammered out by diplomats in the coming days.