Pilot facility launched in Ghana to transform human waste into renewable biodiesel fuel

To celebrate World Toilet Day on November 19, researchers at Columbia University’s Engineering School, working in Ghana with Waste Enterprisers Ltd., the Kwame Nkrumah University of Science and Technology (KNUST), and the Kumasi Metropolitan Assembly, are launching a pilot facility to convert fecal sludge into biodiesel fuel, thereby addressing a ubiquitous societal problem and concurrently producing renewable, cost-effective sustainable energy. The team is scaling up its research efforts initiated in a Columbia Engineering lab, and expects this working facility to become a revolutionary new model in sanitation.
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A New Algorithm for Fast Carbon Footprinting

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Low-cost carbon footprinting is a Holy Grail for the sustainability world. But how do you measure your footprint at multiple levels — from products to business lines to the whole enterprise — quickly and cheaply? Over the last few years, PepsiCo has been working with partners at Columbia University to solve this interesting and complex business problem. The results of this partnership, what the team is calling a “Fast LCA” process, are emerging. And they’re encouraging. Read more

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