What effects have human actions had on the Sahara — the world's largest nonpolar desert?

Why have U.S. policies in the Muslim world failed — and what should the United States do in the future?

As the United States contemplates taking covert action in Waziristan, what should it know about the region’s culture?

What can the United States expect if it conducts more aggressive operations against Al Qaeda in Waziristan?

How does one preeminent U.S. economist view the United States’ current financial woes?

Is anti-immigrant resentment meant to deflect attention from economic stagnation?

What do business schools need to do to prepare business leaders in the 21st century?

Is the $2,500 Tata Nano a symbol of India’s overlooked influence in innovation and global manufacturing?

Why has development aid not helped Africa all that much?

For most families in Burkina Faso, why is rain more than just water falling from the sky?