|Rice plantation in Kerala (India)|
By 1990, the health disorders were noticed among humans. Mothers started delivering children with congenital anomalies, mental retardation, physical deformities, cerebral palsy, epilepsy and hydrocephalus.
The National Institute of Occupational Health, a wing of the Indian Council of Medical Research, conducted a study in the affected areas and identified aerial spraying of endosulfan as the reason behind the complex health problems in the region. But it was not enough to convince the agriculture ministry to order a ban on the chemical.
If you want more about that, read the essay on Tehelka.