(CNN) — Hovering blue flames that flicker over bogs and marshes have inspired ghostly folktales for centuries. Known as “will-o’-the-wisp,” “jack-o’-lantern,” “corpse candle” and “ignis fatuus” ...

The image is surreal: a frozen lake, a scientist kneeling on the ice, and then a sheet of flame racing across the surface as ...

Deep beneath the Arctic permafrost and ocean sediments, a massive reservoir of methane, often referred to as a “time bomb,” poses a significant threat to our climate. This potential for rapid release ...