International Desk: Negotiators in Poland have finally secured agreement on a range of measures that will make the Paris climate pact operational in 2020.
Last-minute rows over carbon markets threatened to derail the two-week summit - and delayed it by a day.
Delegates believe the new rules will ensure that countries keep their promises to cut carbon.
The Katowice agreement aims to deliver the Paris goals of limiting global temperature rises to well below 2C.
"Putting together the Paris agreement work programme is a big responsibility," said the chairman of the talks, known as COP24, Michal Kurtyka.
"It has been a long road. We did our best to leave no-one behind.
The summit accord, reached by 196 states, outlines plans for a common rulebook for all countries - regulations that will govern the nuts and bolts of how countries cut carbon, provide finance to poorer nations and ensure that everyone is doing what they say they are doing.
Sorting out the rulebook sounds easy but is very technical. Countries often have different definitions and timetables for their carbon cutting actions.
The idea of being legally liable for causing climate change has long been rejected by richer nations, who fear huge bills well into the future.
A deadlock between Brazil and other countries over the rules for the monitoring of carbon credits threatened to derail the talks.
Brazil had been pushing for a weaker set of rules on carbon markets, despite strong opposition from many other countries. These discussions have now been deferred until next year.
Further tensions emerged last weekend, scientists and delegates were shocked when the US, Saudi Arabia, Russia and Kuwait objected to the meeting "welcoming" a recent UN report on keeping global temperature rise to within the 1.5C limit.
The report said the world is now completely off track, heading more towards 3C this century.
In a compromise, the final statement from the summit welcomed the "completion" of the report and invited countries to make use of it.
risingbd/Dec 16, 2018/Mukul