Clean earns more money. That's the mantra for investors reaping the reward of alternative energy outperforming fossil fuel. They've known since 2013 that you don't have to drive a Tesla or own its shares (they're up 826 percent) to benefit from green companies lapping the carbon crowd with superior perennial returns.

https://www.bloomberg.com/view/articles/2018-03-20/drone-maker-aerovironment-hangs-on-to-win-clean-energy-bet?utm_campaign=news&utm_medium=bd&utm_source=applenews