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Seabirds forage on an oyster shell island on the Texas Gulf Coast. Jon G. Fuller/VW Pics/ Universal Images Group via Getty Images

Hurricane Harvey more than doubled the acidity of Texas’ Galveston Bay, threatening oyster reefs

Climate change is making oceans more acidic globally. Now, scientists are finding that large storms can send pulses of acidic water into bays and estuaries, further stressing fish and shellfish.
U.S. Defense Secretary Lloyd Austin, center, arrives at a military camp in Quezon City, Philippines, on Feb. 2, 2023. Rolex Dela Pena/Pool/AFP via Getty Images

The US and the Philippines’ military agreement sends a warning to China – 4 key things to know

The agreement lets the US expand its access across military bases in the Philippines, unfolding a new chapter in the countries’ long military history.
In what form do you eat your annual share of the approximately 5 million tons of cocoa produced worldwide? Tracey Kusiewicz/Foodie Photography/Moment via Getty Images

Chocolate chemistry – a food scientist explains how the beloved treat gets its flavor, texture and tricky reputation as an ingredient

There’s a lot of interesting science behind the fermenting, roasting, grinding and melting that turns chocolate into the bars, bonbons and baked goods you know and love.
COVID-19 emergency status prompted coordinated vaccination efforts by health care providers, paramedics, volunteers and others. Wesley Lapointe / Los Angeles Times via Getty Images

Biden’s plan for ending the emergency declaration for COVID-19 signals a pivotal point in the pandemic – 4 questions answered

President Joe Biden’s intention to end the national COVID-19 emergency will have long-lasting ripple effects on federal programs such as Medicare, Medicaid and the Children’s Health Insurance Program.
Caucusgoers stand beneath the sign for the South Carolina delegation at the Democratic National Convention. Bill Clark /CQ-Roll Call, Inc. via Getty Images

Diversity and moderation over tradition – why Democrats moved South Carolina to the start of the 2024 presidential campaign

The Democratic National Committee is shaking up its presidential nominating calendar to give people of color an earlier vote in the process.
Some airlines are already experimenting with sustainable aviation fuel. Michael H/Stone Collection/Getty Images

The future of flight in a net-zero-carbon world: 9 scenarios, lots of sustainable biofuel

Airlines are promising net-zero emissions by 2050. To get there, they’re experimenting with used cooking oil, ag waste and corn ethanol in their fuel tanks. But that alone won’t be enough.
It wasn’t flying that gave birds the advantage. Corey Ford/Stocktrek Images via Getty Images

How did birds survive while dinosaurs went extinct?

Birds and dinosaurs lived together for millions of years, but only toothless birds survived the asteroid impact that upended life on Earth.

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