2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/3358The recent evidence for a cosmological evolution of the fine structure constant α=e^2/\hbar c found from an analysis of absorption systems in the spectra of distant quasars, is modelled by a cosmological scenario in which it is assumed that only the speed of light varies. The model fits the spectral line data and can also lead to a solution of the initial value problems in cosmology.8 pages, 1 figure, Latex file. Minor changes in notation. References addedAstrophysicsGeneral Relativity and Quantum CosmologyHigh Energy Physics - PhenomenologyHigh Energy Physics - Theorytext