How to Bring Your Breakthrough Ideas to Life.

In 2003 the Indian environmental researcher Narayana Peesapaty spotted an alarming trend: Groundwater levels in the region of Hyderabad were falling precipitously. He examined rainfall records but found nothing to explain the drop. Looking deeper, he discovered that the culprit was a change in agricultural practices. Many area farmers had abandoned millet—a traditional crop increasingly regarded as “the poor man’s food”—in favor of rice, a thirsty crop that requires 60 times as much water to grow. And because they had access to heavily subsidized electricity, the farmers were continuously pumping water into their fields.

Peesapaty tried to influence agricultural policies by documenting the problem in government reports, to no avail. So, he looked instead for ways to boost demand for millet. He hit on the idea of turning it into “edible cutlery”—a solution that could attack not just the groundwater deficit but also the scourge of plastic waste. Peesapaty quit…