Delegates from global giants and smaller nations expected to clash at Brazilian summit over how to tackle the climate crisis and who should pay Delegates from global giants and smaller nations expected to clash at Brazilian summit over how to tackle the climate crisis and who should pay The UN’s Cop30 climate conference is under way, with negotiators, diplomats and leaders from around the world in Belém, Brazil , to discuss how to handle the climate crisis. Who are the big players, and what do