American presidents in recent decades have spent a great deal of time proclaiming U.S. leadership of the global system. The decision to withdraw from the Paris climate agreement undermines much of what they have said. For any student of global politics, it represents a watershed moment when it comes to debating America’s role in the world.

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The Trump administration has announced the U.S. will withdraw from the Paris Agreement on climate change. Should we expect any substantive effect on global climate efforts or changes to...

Even before the Paris Agreement was signed in December 2015, market forces and policy measures were starting to tilt the world toward a lower-carbon future. U.S. carbon dioxide emissions peaked in 2007, and...

President Trump has made clear through executive orders and appointments that he does not care much about climate change in particular or environmental protection in general. Trump’s announcement that the United States will withdraw from the Paris climate agreement shows...

Editor’s note: President Donald Trump stunned the world on June 1 by announcing his intention to withdraw the United States from the Paris climate accord, a landmark global agreement to lower greenhouse gas emissions and minimize the harm from climate change. We’ve assembled a panel of academics and scientists to analyze what this...

For the third time in a year and a half, the Advanced Laser Interferometer Gravitational Wave Observatory has detected gravitational waves. Hypothesized by Einstein a century ago, the identification of these...

Next year will mark the 40th anniversary of the Love Canal...

An estimated 3.3 million American Muslims are celebrating the month of Ramadan. It was during this month that Prophet Mohammad first received revelations from God.

The holiday has been celebratedat the White House with American Muslims since 1996, when First Lady Hillary...

Rocsana Enriquez started thinking about yoga again when she was pregnant. She was 19 and in an abusive relationship.

When she was younger, Rocsana, whom I interviewed as part of my research, had taken part in a yoga program in a San Francisco Bay Area juvenile hall run by The Art of Yoga Project. She began...

Share prices of many military and intelligence contractors have risen sharply since President Donald Trump’s election.

Investors are betting that an increase in defense spending will provide a windfall for these firms. For instance, General Dynamics, a large contractor that develops combat vehicles and weapons systems for the U.S. military,...