The accidental climate scientist who uncovered an unexpected force of global warming

By Katie Hunt, CNN (CNN) — Scientist Veerabhadran Ramanathan yearned for the American dream while growing up in southern India in the 1960s: specifically, a Chevrolet Impala, a muscle car he learned about from his father, a tire salesman. Ramanathan made it to the United States in his 20s, but he never bought his gas