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Many cities, such as New York, returned to hosting big public displays in 2021 after skipping 2020 due to the pandemic. AP Photo/John Minchillo

Yes, fireworks prices are skyrocketing, but there should be plenty of bottle rockets and sparklers for you and your family this Fourth of July

The latest data shows imports of bottle rockets, sparklers and other fireworks at a record pace, even as consumer demand appears likely to wane. That could create opportunities for patient revelers.
Most plastic products that are clear and strong are made using bisphenol A, or BPA. Beton Studio/iStock via Getty Images

What is BPA and why is it in so many plastic products?

The US Environmental Protection Agency is reexamining the health effects of bisphenol A. A chemist explains why BPA is in plastics and why it’s hard to find a safe replacement.
A playground bench is colorfully decorated at the new Sandy Hook Elementary School, which replaced the one torn down after a gunman killed 20 first graders and six educators in 2012. AP Photo/Mark Lennihan

Demolishing schools after a mass shooting reflects humans’ deep-rooted desire for purification rituals

An anthropologist explains the power of purification rituals, such as bringing down a building following a tragic occurrence in it, and why they help reduce our anxieties.
Pinpointing Elvis Presley’s true persona can depend on when and whom you ask. Don Cravens/Getty Images

Was there anything real about Elvis Presley?

Presley never wrote a memoir. Nor did he keep a diary. His music could have been a window into his inner life, but he didn’t even write his songs.
Many citizen science projects rely on volunteers to collect data in the field. Marko Geber/DigitalVision via Getty Images

Citizen science volunteers are almost entirely white

The homogeneity of citizen science volunteers undercuts the ability of these projects to bring science to underserved communities.
Schoolteachers are reporting high levels of burnout. AP Photo/David Goldman

Teacher burnout hits record high – 5 essential reads

With teachers reporting record-high levels of burnout, and more burnout than any other profession in the US, scholars examine what’s going on and what it may mean for education.
The control room of the California Independent System Operator, which manages the flow of electricity on the state’s power grid. Rolf Schulten/ullstein bild via Getty Images

What is curtailment? An electricity market expert explains why states sometimes have too much wind or solar power

Sometimes wind and solar power produce more electricity than the local grid can handle. Better energy storage and transmission could move extra energy to where it’s needed instead of shutting it off.
Grain warehouse destroyed by Russian attacks in Kopyliv, Kyiv province, Ukraine, May 28, 2022. Dogukan Keskinkilic/Anadolu Agency via Getty Images

Starving civilians is an ancient military tactic, but today it’s a war crime in Ukraine, Yemen, Tigray and elsewhere

Countries have used starvation as a war strategy for centuries, historically without being prosecuted. Three experts on hunger and humanitarian relief call for holding perpetrators accountable.
Children living in low-income neighborhoods with ‘hands-off’ norms about safety showed higher levels of reactivity in a region of the brain associated with emotion processing and threat detection. DenisTangneyJr/E+ via Getty Images

Kids’ neighborhoods can affect their developing brains, a new study finds

The latest findings add to the understanding of how social disadvantage such as poverty and low-quality, unsafe housing can affect early child development.
Finland and Sweden joined 14 NATO allies in a June 6, 2022, military exercise on the Baltic Sea. Jonathan Nackstrand/AFP via Getty Images

Finland’s and Sweden’s pursuit of NATO membership is the exact opposite of what Putin wanted for Russian neighbors

Sandwiched between Russia and NATO ally Norway, both Sweden and Finland have maintained neutrality in global conflicts. That changed in February 2022, when Russia invaded Ukraine.
In this photo from 2016, students pass through a security checkpoint at William Hackett Middle School in Albany, N.Y., with guards, bag inspections and a metal detector. AP Photo/Mike Groll

Does hardening schools make students safer?

Surveillance cameras, metal detectors, door-locking systems and armed guards have not prevented school shootings. A school safety scholar examines other possible approaches.