The world took a collective sigh of relief in the last days of 2015, when countries came together to adopt the historic Paris agreement on climate change.
The international treaty was a much-needed victory for multilateralism, and surprised many with its more-ambitious-than-expected agreement to pursue efforts to limit global warming to 1.5°C.
The next step in bringing the agreement into effect happens in New York on Friday 22 April, with leaders and dignitaries from more than 150 countries attending a high-level ceremony at the United Nations to officially sign it.
The New York event will be an important barometer of political momentum leading into the implementation phase – one that requires domestic climate policies to be drawn up, as well as further international negotiations.
It comes a week after scientists took a significant step to assist with the process. On April 13 in Nairobi, the Intergovernmental Panel on Climate Change agreed to prepare a special report on the impacts of global warming of 1.5°C above pre-industrial levels. This will provide scientific guidance on the level of ambition and action needed to implement the Paris agreement.
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