Paris climate deal ‘close to finish line’ but talks set to overrun

French foreign minister calls for second all-night session to seal agreement on 20-year diplomatic process but admits talks will finish on Saturday

Governments trying to reach a climate change agreement in Paris have drawn "extremely close to the finish line" but will overrun into Saturday, according to the French foreign minister.

With an agreement in sight to keep temperature rises in check and avoid dangerous global warming, Laurent Fabius called for a second all-night session of negotiations to try to bring 20 years of rollercoaster diplomacy to a successful close.