Opinion: Environmental sustainability and consumption

One of the politically destructive strands of environmental advocacy criticizes material consumption and attempts to make people feel guilty for air travel and other forms of behavior that pollutes the environment.

Researchers harness the sun to produce hydrogen gas from water

A team of chemistry researchers at the University of North Carolina at Chapel Hill has developed a unique approach to harnessing the sun's energy to produce hydrogen gas, a potential clean energy source, from water, according ...

How a molecular motor moves in a network

A new study determines the efficiency of a single-molecule heat engine by considering a series of ratchets that transfer energy along a network.

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