Fireflies aren’t fading because summers feel different — science shows they’re under real pressure. A global expert review in 2020 highlighted three big culprits: shrinking habitat, rising night-time lighting, and heavy pesticide use. When nights get too bright, their bioluminescent “love language” fails, and fewer couples find each other to mate. When lawns are too tidy or wetlands are drained, larvae lose homes before they ever get to glow. But hope isn’t gone. Turn off extra lights. Skip the