COVID-19 has spurred investments in air filtration for K-12 schools – but these technologies aren't an instant fix

Air-ventilation upgrades have been badly needed in U.S. classroooms since long before the pandemic. Low-tech filtration systems that cost about the same as a textbook per student can make a big difference.

Mark Thomas Hernandez, S. J. Archuleta Professor of Environmental Engineering, University of Colorado Boulder • conversation
Aug. 24, 2021 • ~9 min

Solar geoengineering is worth studying but not a substitute for cutting emissions, study finds

Is it time to take drastic steps to modify Earth's climate to avoid catastrophic warming? A panel of experts says the idea deserves study.

Marion Hourdequin, Professor of Philosophy, Colorado College • conversation
March 30, 2021 • ~11 min

CDC says masks must fit tightly – and two are better than one

How well your mask works depends on how well it fits. Wearing two snug masks made of different materials offers 95% protection from exposure to aerosols that could contain the coronavirus.

Scott N. Schiffres, Assistant Professor of Mechanical Engineering, Binghamton University, State University of New York • conversation
Feb. 11, 2021 • ~9 min

How to stay safe with a fast-spreading new coronavirus variant on the loose

The new variant has been estimated to be 50% more transmissible. It's already been detected in at least 10 US states.

Byron Erath, Associate Professor of Mechanical Engineering, Clarkson University • conversation
Jan. 17, 2021 • ~7 min

How to stay safe with a new fast-spreading coronavirus variant on the loose

The new variant has been estimated to be 50% more transmissible. It's already been detected in at least 10 US states.

Byron Erath, Associate Professor of Mechanical Engineering, Clarkson University • conversation
Jan. 17, 2021 • ~7 min

Would you eat indoors at a restaurant? We asked five health experts

Experts weigh in on whether they will sit and eat at a restaurant.

Thomas A. Russo, Professor and Chief, Infectious Disease, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo • conversation
Dec. 23, 2020 • ~9 min

Vaccine roll-out is still months away – how can we avoid more lockdowns in the meantime?

Why the virus just keeps spreading – and what to do about it.

Andrew Lee, Reader in Global Public Health, University of Sheffield • conversation
Nov. 12, 2020 • ~8 min

7 tips for staying safe as COVID-19 cases rise and colder weather heightens the risk

Social distancing can get tougher in the fall and winter. These simple steps can help keep you and yours loved ones healthy.

Melissa Burdi, Dean, Purdue Global School of Nursing, Purdue University • conversation
Oct. 19, 2020 • ~7 min

Being outdoors doesn’t mean you're safe from COVID-19 – a White House event showed what not to do

The wind will disperse some virus-carrying respiratory droplets, but not everything. Masks can make the difference.

Thomas A. Russo, Professor and Chief, Infectious Disease, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York • conversation
Oct. 8, 2020 • ~7 min

When COVID-19 superspreaders are talking, where you sit in the room matters

Experiments in college classrooms show how tiny respiratory droplets known as aerosols can spread, even with good ventilation. The risk isn't the same in every seat.

Suresh Dhaniyala, Bayard D. Clarkson Distinguished Professor of Mechanical and Aeronautical Engineering, Clarkson University • conversation
Oct. 5, 2020 • ~8 min

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