United Press International: A Spanish-led study suggests the ability of plants to tell time through a circadian clock might produce information that can improve climate change models. The researchers, led by the University of Castilla la Mancha, said they studied plants’ circadian rhythm — the roughly-24-hour cycle in the biochemical, physiological or behavioral processes of living organism — from a molecular viewpoint and found an ecological implication — it makes climate change scenarios and CO2 level …