Nearly 200 countries overcome divisions, producing 156-page rule book for implementing the landmark 2015 Paris Agreement.

Nearly 200 nations overcame political divisions on Saturday to agree on rules for implementing a landmark global climate deal, but critics say it is not ambitious enough to prevent the dangerous effects of global warming.

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After two weeks of talks in the Polish city of Katowice, officials from around the world finally reached a consensus on a more detailed framework for the 2015 Paris Agreement which aims to limit a rise in average world temperatures to "well below" two degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels.

"It is not easy to find agreement on a deal so specific and technical. Through this package you have made a thousand little steps forward together. You can feel proud," Polish president of the talks Michal Kurtyka told delegates.

After he struck the gavel to signal agreement had been reached, ministers joined him on the stage, hugging and laughing in signs of relief after the marathon talks.