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” (“foolish fire ...

For centuries, people have told tales about strange, flickering blue lights dancing over bogs and graveyards. Known as ignis fatuus, will-o’-the-wisp, or jack-o’-lantern lights, they were said to lure ...

Methane emissions from wetlands are rising faster than those from industrial sources, prompting concerns about a climate feedback loop.