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KATOWICE, Poland — Diplomats from nearly 200 countries reached a deal on Saturday to keep the Paris climate agreement alive by adopting a detailed set of rules to implement the pact.

The deal, struck after an all-night bargaining session, will ultimately require every country in the world to follow a uniform set of standards for measuring their planet-warming emissions and tracking their climate policies. And it calls on countries to step up their plans to cut emissions ahead of another round of talks in 2020.

It also calls on richer countries to be clearer about the aid they intend to offer to help poorer nations install more clean energy or build resilience against natural disasters. And it builds a process in which countries that are struggling to meet their emissions goals can get help in getting back on track.