Yale Environment 360: Ground-level ozone, the main component of smog, damaged 6.7 million tons of Indian crops worth an estimated $1.3 billion in a single year, according to a new study published in Geophysical Research Letters. That's enough wheat, rice and other staple crops to feed 94 million people roughly one-third of the country's impoverished population. Arising from a combination of vehicle emissions, cooking stoves, and industrial sources, plant-damaging ozone has left many of India's fast-developing cities...