Pandemic mask mountain sets new recycling challenge

Researchers in Australia want to transform single-use COVID masks into road material. In the United States, the protective gear is recycled into benches. And in France, they are reborn as floor carpets for cars.

Owl wing design reduces aircraft, wind turbine noise pollution

Trailing-edge noise is the dominant source of sound from aeronautical and turbine engines like those in airplanes, drones, and wind turbines. Suppressing this noise pollution is a major environmental goal for some urban areas.

No longer a last resort: Pulling CO2 from the air

To save the world from the worst ravages of climate change, slashing carbon pollution is no longer enough—CO2 will also need to be sucked out of the atmosphere and buried, a landmark UN report is expected to say on Monday.

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