Countries must bolster climate efforts or risk war, Cop30 chief executive warns

Ana Toni also criticises the UK's plans to slash overseas aid to fund defence spending

Countries looking to boost their national security through rearmament or increased defence spending must also bolster their climate efforts or face more wars in the future, one of the leaders of the next UN climate summit has warned.

Some countries could decide to include climate spending in their defence budgets, suggested Ana Toni, Brazil's chief executive of the Cop30 summit.