The Santa Marta summit represents a notable shift in climate diplomacy, prioritizing action-oriented dialogue over traditional negotiation gridlock. The exclusion of major emitters like China and the U.S. reflects a strategic gamble: by focusing on a "coalition of the willing," organizers aimed to bypass the paralysis of consensus-based UN processes. This approach risks marginalizing key players but may accelerate progress among committed nations. The summit’s emphasis on science—through the new...