Does evolving dark energy resolve the Hubble tension?

DESI's baryon acoustic oscillation measurements suggest dark energy isn't constant but evolves over time. When cosmologists reanalyze local Hubble constant measurements using these evolving dark energy models instead of the standard model, the value drops by 1–2.5 km/s/Mpc depending on what other data they include. This matters because the Hubble constant is one of the most contentious numbers in cosmology—different methods give different answers, and the choice of dark energy model now appears to affect the answer.