The nations of the world are due to meet at the COP27 summit in Egypt, to try to agree far-reaching action on climate change.
They are under pressure to improve on landmark commitments they made seven years ago in Paris.
The Paris Agreement saw almost all the world’s nations – for the first time – support a common strategy to cut the greenhouse gas emissions which cause global warming.
Adopted by 194 parties (193 countries plus the EU) in the French capital on 12 December 2015, the treaty came into force on 4 November 2016.
US President Donald Trump withdrew from the agreement, but his successor Joe Biden rejoined on his first day in office in January 2021.