In the face of mounting threats to humanity’s continued existence on Earth, scientists are proposing various solutions. But they all seem to be overlooking one fundamental problem.

Fifty years after one of the shortest wars in history, the world feels its far-reaching effects more than ever.

A passionate proponent of living simply and in harmony with nature, Thoreau is remembered today as a pillar of the modern conservation movement.

Rebuilding the world economy on a more sustainable model is a daunting task. It has to start with you and me—and at that level, it isn’t so hard after all.

Insight Video: Many scientists are warning that the human footprint is one of indiscriminate destruction and possibly irretrievable loss. Are our days numbered?

Insight Video: Is the present century humanity’s last? It’s a growing concern for many.

Insight Video: We’ve entered the age of post-truth—where objective facts carry less weight than emotions and opinions. Is truth obsolete?

Around the world, whole species of amphibians are dying. And it all may have started with a human pregnancy test.

Two authors not only explore the monumental problems facing the world today but also propose a way forward. Are their solutions workable? Yes and no.

How you read the title of this article may say something about your view of failure—and about the likelihood of your eventual success.

We all admire those who live by high moral principles, yet we find excuses for not following suit. Why?

Gun control may seem a uniquely American issue, but at its heart lies a much deeper problem with global implications.

It’s no secret that Benito Mussolini saw himself as a 20^th-century Roman emperor. But new evidence confirms that he also thought of himself as the savior—the Christlike messiah—of the Italian people.

Vision reviews three books addressing the increasingly insistent claim that without religion, there would be much less war and violence in the world.

Biochemist Jennifer Doudna talks to Vision’s Dan Cloer about a genetic-engineering breakthrough that has profound implications for biology and medicine.

Terrorism is nothing new. Yet a meaningful definition remains elusive, understanding the issues is a challenge, and a lasting solution seems more than we can hope for. Are there answers?

Understanding China’s current place in the world requires looking at the nation through a non-Western lens.

In the face of human nature, ideal government has proven elusive. Still, there’s one option we haven’t yet tried.

Three historians undertake a careful review of one of the world’s ancient empires, encouraging readers to take another look at long-accepted facts and interpretations.

Disease epidemics were once explained as expressions of God’s implacable anger over our sinful human nature. Then came modern science.