Booming blooms: how algae are turning the alps pink

They are usually associated with toxic, murky lakes. But algae blooms are increasingly turning up in icy regions too. Hannah Devlin speaks to Prof Marian Yallop about the recent appearance of pink snow in the Italian alps, and what the growing numbers of algal blooms could mean for melting glaciers and ice sheets. Help support our independent journalism at theguardian.com/sciencepod