Plant-nibbling insects may make it cloudier and cooler

Plants can release certain chemicals to shield themselves from high temperatures and potentially communicate with other plants. They also release these chemicals in response to stress, including when insects chomp on their ...

Do wind instruments disperse COVID aerosol droplets?

During the COVID-19 pandemic, many live musical events and festivals were postponed and even canceled to protect musicians and audience members. When they started performing again, many groups resorted to performing with ...

Cloud study demystifies impact of aerosols

Aerosol particles in the atmosphere have a bigger impact on cloud cover—but less effect on cloud brightness—than previously thought, new research shows.

Music-making and the flow of aerosols

The latest research from the labs of Penn scientists Paulo Arratia and Douglas Jerolmack was an answer to "a call for help," says Arratia.

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