Europe's rivers run dry, and history resurfaces: Century-old shipwreck emerges in Serbia's drought

Extreme heat and drought are causing European rivers to recede. A steam tugboat from the early 1900s has emerged from the Sava River. This vessel, known as the Slovenian, sank during World War II. Other historical items like German warships and mammoth bones have also surfaced. Experts warn these extreme weather events are becoming increasingly common.