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As the Israeli company, whose microbe technology consumes the contaminants in water, grabs another round of funding, its founder looks into fuel cells.
You can live without electricity, but not water or food. A crop of new companies are trying to take the chemistry out of agriculture and eliminate crop pests and microbes the natural way.
Channel the heat from power plants to give water to a thristy world. That's the idea of a physicist from the Sont Longowal Institute in Punjab, India.
Worsened by growing demand, fresh water supplies are being stressed just like oil. Clean tech investment in water can play a part.