Editor's note

President Trump yesterday withdrew the United States from the multinational Iran nuclear deal. The controversial decision, which scuttles a hardwon Obama-era agreement, is only the latest of many foreign policy U-turns – and not just from Trump. Presidents often reverse their predecessors’ policies, notes Charles Hermann of Texas A&M University. Based on his historical research on how leaders react when their choices go wrong, Hermann is most concerned about Trump’s decision-making style.

Hawaii’s Kilauea volcano has generated dramatic footage of lava flows and fountains in the past several days. But while it has destroyed several dozen homes and forced hundreds to evacuate, this event ranks as less dangerous than many other volcanic eruptions. Boise State University geoscientist Brittany Brand outlines the many ways in which volcanoes can be deadly – and lava is the least of it.

Drinking too much alcohol can cause a nasty hangover, or in more severe cases it can lead to the ER. A team of scientists have developed a pill that helps the liver fast-track the breakdown of booze. They’ve tested it in mice and, if all goes well, it could be in human clinical trials within a year. That could mean fewer hangovers and overdoses, and fewer drunk lab mice.

Catesby Holmes

Global Affairs Editor

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Radical policy shifts are a hallmark of the Trump administration. On May 8, the president announced that the U.S. would withdraw from the international Iran nuclear deal. Reuters/Jonathan Ernst

Presidents often reverse US foreign policy — how Trump handles setbacks is what matters most now

Charles Hermann, Texas A&M University

Many presidents have radically changed US foreign policy. Truman created his own doctrine. Carter gave up the Panama Canal. But a presidential historian sees danger in Trump's decision-making style.

Lava flow moves in the Leilani Estates subdivision near Pahoa on the island of Hawaii, May 6, 2018. USGS via AP

Lava, ash flows, mudslides and nasty gases: Good reasons to respect volcanoes

Brittany Brand, Boise State University

Fountains of lava from Hawaii's Kilauea volcano are dramatic, but the most deadly impacts of volcanic eruptions are toxic gases and ash and mud flows.

Keep the buzz. Lose the hangover. By bogdanhoda/Shutterstock.com

A hangover pill? Tests on drunk mice show promise

Yunfeng Lu, University of California, Los Angeles

A new pill may lower blood alcohol levels, helping a hangover and preventing alcohol overdose deaths.

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Today’s quote

"To investigate chimp communication, my colleagues and I follow chimpanzees through the forest as they go about their lives."

 

Studying chimpanzee calls for clues about the origins of human language

 

Michael Wilson

University of Minnesota

Michael Wilson