Five years on, Deepwater Horizon oil spill’s impact lingers

Anniversary of a disaster in the Gulf of Mexico shows much remains murky

Exploding Oil Rig

THE AFTERMATH  Deepwater Horizon's fifth anniversary is greeted with more questions than answers.

US Coast Guard/Wikimedia Commons

In a steamy Louisiana marsh, crickets do their best impersonation of a canary in a coal mine.

Afloat in orange cages on the coastal wetland, the featherless chirpers warn researchers of toxic fumes rising from oil.