The oil industry dominates New Orleans, where a few concessions to the environment include small solar panels atop parking meters, above, and a growing network of electric streetcars, including this one on Canal Street, below. By VICTOR E. SASSON EDITOR NEW ORLEANS -- On a six-day visit to the Big Easy, I thought my eyes were playing tricks on me. Downtown streets were filled with an unusually large number of big SUVs and pickup trucks, and only a small number of gas-electric hybrids. I rode plenty of electric streetcars, but saw not a single all-electric car from Tesla, Nissan, BMW or other manufacturer. And solar panels seemed more common on parking meters than on buildings and homes. In the city's Garden District, I saw a rare Toyota Prius gas-electric hybrid in a neighborhood filled with SUVs. Oil, music and fish A visitor soon learns how important the petroleum industry is to New Orleans and Louisiana, despite the Deepwater Horizon spill six years ago that nearly destroyed th...