New Delhi, Feb. 28 -- There will always be opportunities for innovation. Personalized therapies can help cut down on medication waste. In drug formation, greener catalysts can reduce hazardous byproducts. Continuous-flow systems can reduce the need for solvents and cleaners. National Science Day is a wonderful opportunity to embrace both the past and present. We celebrate the knowledge gained over the millennia and wait with bated breath for the next advancement that enriches our lives.

This year, there's a focus on Science for a Sustainable Future. And you'll probably read many sentences around the Web about how great it is to protect the planet and how important that goal is. Merely talking about it is one thing. At a certain point, yo...