As the Israelis and Palestinians grapple with direct negotiations for peace, there's another issue that is dividing them: water.
A new approach to the worlds most entrenched social problems.
The efforts of two social entrepreneurs to make something better from garbage in Egypt.
A report on the health and possible climate effects of black carbon, commonly known as soot.
An in-depth look into the major drought plaguing Australia and how it is impacting farmers and food production.
A new clinic promotes health and environmental stewardship.
India, soon to be the largest nation on earth, is facing a crisis in providing enough food for its people.
Watch part one in our global food security series.
In the Indian state of Rajasthsan, farmers have accused Coca-Cola factories of drawing too heavily on the area's water supplies.
