Energy secretary says Britain must work on vital alliances with other countries following victory of climate-denier Trump

The UK must ramp up its efforts on renewable energy to foster national security in an increasingly uncertain world, the energy secretary, Ed Miliband, has warned, on the eve of a fraught global summit on the climate crisis .

He pledged that the UK would lead efforts at Cop29 to secure the global agreement needed to stave off the worst impacts of climate breakdown, in talks that have been thrown into turmoil by the re-election of Donald Trump as US president.