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Hannes van der Watt, Research Assistant Professor, University of North Dakota

What is hydrogen, and can it really become a climate solution?

Hydrogen United States Natural Gas Europe Renewable Energy Canada
Hydrogen has potential, but it faces some big challenges, including a lack of pipeline infrastructure. Petmal/iStock/Getty Images Pluss plus

Hydrogen, or H₂, is getting a lot of attention lately as governments in the U.S., Canada and Europe push to cut their greenhouse gas emissions.

But what exactly is H₂, and is it really a clean power source?

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