Iraqi sheep, locals, environment suffer Islamic State oil fires

Locals cough and wheeze under vast clouds of smoke, and NASA images show oil threatening to encroach on the Tigris River, a major water source. Lit by Islamic State as they fled Iraqi forces in August, huge oil fires are still raging across northern Iraq, bringing a litany of problems in their wake. A toxic cloud has hung for months over the town of Qayyara, just 60 km (40 miles) from Mosul where Iraqi forces are battling to defeat the militant Sunni group.