The world’s biggest climate talks have kicked off in Brazil’s Amazon city of Belem, with tens of thousands from more than 190 countries in town for the COP30 summit. But even before they began, COP30 was already stirring controversy. CNA’s Rachel Teng takes you through the grueling journey she and her crew made to reach the remote port city - and what’s on the agenda this year. #COP30 #brazil | CNA