A proposal to simultaneously use different parts of sunlight’s spectrum to produce crops, generate electricity, collect heat and purify water on the same piece of land could provide resources in a “full-Earth” scenario. Purdue University image/Rakesh Agrawal, Pamela Burroff-Murr
A proposal to simultaneously use different parts of sunlight’s spectrum to produce crops, generate electricity, collect heat and purify water on the same piece of land could provide resources in a “full-earth” scenario.

N&H TOPLINE: Concept could meet resource needs of ‘full Earth’

Concept works by separating and harvesting three specific segments of solar spectrum best suited to facilitate production of food, energy and clean water.

A new concept proposes to provide food, energy and water resources for the world’s growing population by combining systems that simultaneously use different parts of sunlight’s spectrum to produce crops, generate electricity, collect heat and purify water.

The world’s human population is expected to grow from 7 billion to more than 10 billion people over the next two to three generations, leading to a “full-Earth” scenario.

“This increase in

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