Some of the world’s poorest countries have pledged to dramatically cut their carbon emissions and rapidly move to 100% renewable power, as the UN climate summit in Marrakech drew to a close on Friday.

The announcement followed a final declaration by nearly 200 nations affirming their “highest political commitment” to combatting climate change, in a thinly-coded warning to the incoming US president, Donald Trump.

But the talks ended with what the outgoing president of the conference, Salaheddine Mezouar, called a developing emergency over climate finance.

Image: The climate march at the COP22 climate conference in in Marrakech, Morocco. Photograph: Jeremy Sutton-Hibbert/Greenpeace.