Climate science says 1.5C is dead. No one wants to bury it.

Delegates at COP31 are working to preserve the 1.5C warming target even after the U.N. declared it effectively out of reach, keeping a totemic goal alive despite mounting scientific evidence of overshoot. The push reflects the political and diplomatic weight the threshold carries rather than a realistic near-term trajectory, with leaders reluctant to formally abandon a benchmark that has anchored global climate policy for nearly a decade. The dispute matters because the 1.5C figure underpins national emissions pledges, adaptation finance discussions and the credibility of the Paris Agreement framework. Watch for whether governments soften language around the target in the final COP31 text, and whether replacement metrics or overshoot strategies gain formal footing.