Scientists are flocking to Iceland to investigate an increasingly crucial question: Will melting glaciers accelerate and intensify earthquakes and volcanic eruptions? PBS News Hour's William Brangham reports. | PBS NewsHour

Iceland is home to some of the most magical waterfalls in the world! 🌊✨ Seljalandsfoss is one of the few waterfalls in the world you can walk behind 🌈. Don’t forget your raincoat, it’s the ultimate Iceland photo spot! 📸 Video by Felix Schreiner | @felixschreiner_ | Guide to Iceland

🌟 Explore the heart of Iceland in one unforgettable day – Golden Circle in comfort and style! 🇮🇸 Want to see Iceland’s top highlights without the crowds? We’ll take you on a private journey in a luxury Mercedes V-Class (max. 6 people) through some of the most iconic spots: 🟢 Þingvellir National Park – where continents meet 💨 Geysir geothermal area – Strokkur erupts every few minutes 🌊 The majestic Gullfoss waterfall 🍅 (Optional) Lunch at the Fridheimar Tomato Greenhouse – trust us, the so