It is now less than six months before the world’s nations gather in Brazil for the COP30 climate summit, where observers hope to see key action on halting global warming. But with skyrocketing accommodation prices, distracted world leaders and accusations that the meeting’s Brazilian hosts are dodging the difficult topics, is COP30 in crisis?

This year’s meeting is particularly important, coming a decade after countries struck the Paris Agreement, the landmark climate deal designed that pledged to keep warming below 2°C or, ideally, 1.5°C. While the latter goal…