Researchers from Bose Institute, Kolkata, investigated the effect of air circulation and the varying climatic conditions on the mustard aphids that migrate across the Indo-Gangetic Plains in Northern India. The authors traced the pests’ exact origin by studying the backward courses of air movement along known migratory routes.
An IIT Bombay study using satellite data shows rising greenhouse gas levels over Delhi and Mumbai and also identifies emission hotspots in these cities.