Industrial pollution

Carmakers have known for decades that battery recycling was poisoning people abroad. Nigeria’s crackdown is an effort to catalog the damage.

Despite decades of evidence on the toxic effects of battery recycling, companies opted not to act and blocked efforts to clean up the industry.

People in Africa’s lead recycling capital have long suspected that the black dust falling from the sky is making them sick. But the extent of the damage to their bodies and their community hasn’t been clear until now.

Blood and soil testing confirmed the health consequences. Then we tracked individual shipments to the United States.

Legislators respond to The Examination and Houston Chronicle investigation of oil companies leaking hydrogen sulfide near families and schools.

A new investigation examines the health threat of H2S, a strong-smelling poisonous gas that saturates the Permian Basin of West Texas and other oil-production regions.