In northeastern Spain, the spread of zebra mussels continues to baffle water management experts, keeping them on alert over the damage to water infrastructure caused by these invasive species. Their presence in reservoirs, irrigation canals and water distribution networks has begun to disrupt water supplies, especially in Catalonia’s Lleida province, as per a report by…

Long before English colonists ever set foot in North America, an enslaved man born in Morocco had already walked thousands of miles across it, surviving shipwrecks, years of captivity and a journey that took him through present-day Florida, Texas and deep into the Southwest. His name was Estevanico, and his story is one of the…

Dam removal on the Middle Fork Nooksack River, Washington (American Rivers photos) The United States removed 100 dams across 30 states in 2025, reconnecting more than 4,893 miles of rivers, according to a report by the organisation American Rivers. The organisation said it was the largest number of upstream river miles reconnected through dam removal…