Every cow, tagged and traced: Colombia's new law aims to keep beef out of the forest

Colombia has passed a cattle traceability law requiring ear tags and tracking from birth to market, so beef can be certified as deforestation-free. Ranching drives most forest loss in the Colombian Amazon, and campaigners call this the first national system designed to tackle that driver head-on. If it works as written, supermarkets and buyers will be able to check exactly where their beef grazed.