Gates of the Arctic National Park, Alaska. Plants on the Arctic tundra absorb mercury from the air, then transfer it to soil when they die.
How do mercury emissions from industrialized countries reach the remote Arctic? Recent research shows that plants on the tundra absorb mercury vapor through their leaves, then pass it into soil.
Voodoo doll or an illustration of the Republican tax plan on income inequality?
Supply-side economics is the intellectual backbone of the argument that tax cuts for the wealthy will boost business investment, wages and growth. The evidence suggests otherwise.
Mourners embrace at a vigil for Richard Collins III, who was stabbed to death in College Park, Maryland.
AP Photo/Brian Witte
Like the death of Heather Heyer in Charlottesville, the murder of Richard Collins III was a symptom of violent extremism that should be treated accordingly.
Reading to children and talking to them about the story helps them love stories and become better readers.
Parents want to do everything they can to get their kids' school year off to a good start. Here's why talking with them is one of the best ways to do that.
Members of Patriotic Millionaires, whose privileged members advocate for higher taxes on the rich, met with lawmakers in this 2015 photo to discuss legislation to close the carried interest loophole.
When the wealthy become unlikely allies in the fight against inequality, they often take similar steps. It all starts with acknowledging their own privileges.
James Alex Fields Jr., second from left, holds a black shield in Charlottesville, Virginia, where a white supremacist rally took place.
Alan Goffinski via AP
The United States is seeing an uptick in far-right extremist violence. It's time to pay more attention to this scourge and its causes.
People with autism sometimes struggle to tell stories, but there are ways parents can help.
Pressmaster / Shutterstock.com
People tell each other stories every day about the things they've seen and done. For many children with autism, this kind of personal narrative doesn't come easily. Here's how parents can help.
President Jacob Zuma at the opening of the National House of Traditional Leaders in Parliament.
The clash over South Africa's Traditional Courts Bill is essentially about custom and constitutionalism. The government is often seen as pandering to traditional leaders' whims.
President Barack Obama waves as he leaves the Oval Office for the last time.
Evan Vucci/AP Photo
The Trump administration has been trashing Obama's economic legacy lately as it pursues a drastic change of course, but the facts tell a different story.
It’s not always obvious where a new technology will end up.
NIH Image Gallery
A scientific breakthrough in a vacuum may be free of ethical implications. But many developments can be used for good or evil, or both. There's a fine balance on what to control and to what extent.
Frank Tilley/The Victoria Advocate via AP
If police officers are sent to museums to train observational skills, shouldn't literary texts be used to teach empathy?
Will Congress take the handoff from the Fed?
Although the economy added jobs for a 72nd month – the longest streak since WWII – growth remains sluggish. Two economists argue it's up to lawmakers and the next president to pick up the slack.
University students and supporters of the peace deal protest during a rally in Bogotá, Colombia.
Few Colombians who have been displaced by violence voted on the peace deal from abroad. An expert in conflict resolution explains why their voices must be part of the peace process.
Migrants at the Greek-Macedonian border earlier this year: Is there a better way to deal with seemingly intractable problems?
Our institutions are not solving the world's wicked problems, such as the refugee crisis and climate change. Can sustainable coffee – a bottoms-up, modular approach – provide clues to a better way?
The U.S. could do with a shot in the arm too.
Bear syringe via www.shutterstock.com
Although the Fed delayed raising rates this month, it has signaled it intends to wean the U.S. economy off its unprecedented monetary stimulus. Now the question is whether Congress will take the handoff.
Unlike clownfish (Nemo), Pacific blue tang fish (Dory) cannot be bred in captivity.
The release of the movie 'Finding Dory' comes with renewed calls to leave fish in reefs – a good idea in this case – but catching some ornamental fish can have a positive impact on reef communities.
Hillary Clinton celebrates her nomination.
Political scientists from Texas A&M, UMass Boston and Emory University react to Tuesday’s big milestone for women in American politics.
Focusing on the jobs we lost may not be the best way to do this.
Instead of trying to bring back the old economy jobs that have been lost, the U.S. should focus on training Americans in the new skills that will be needed in tomorrow's economy.
Demonstrating in Washington state, November 2015.
Many groups have been labeled 'enemy' in the American past. A literary scholar looks at the role literature and philosophy have played in dispelling fears and shifting public attitudes.
Why do special educators leave teaching?
US Department of Education Follow
A shortage of special education teachers is threatening states’ abilities to provide high quality education for students with disabilities. Changing teachers’ working conditions can help.