Artificial intelligence (AI) is taking the world by storm—and is causing a storm of controversy over its gargantuan electricity appetite and its insatiable thirst for fresh water to cool the heat its generation produces. Moreover, observers are alarmed by the pressure AI production is putting on aging grid infrastructure and the increased carbon emissions it can entail.

A recent study by researchers at the University of Plymouth, UK, has found that a portion of the world’s oceans have darkened from 2003 to 2022. This is concerning because marine life depends on light for hunting, migration, and reproduction.

Through some of Europe’s most stunning countryside, an epic 167-mile story flows—a story of how courage, determination, and sacrifice by ordinary people saved one of the continent’s last surviving “wild” rivers.