Danube Delta, Romania

From April to September, millions of migrating birds visit the Danube Delta’s sandy islands, floating reed beds, cane fields, forests, and ...

African Lion Mother and Cub, Tanzania

Everything about this photographic moment is tender. The light, the gesture, the color are perfect. But there is also a small detail that...

Victoria Falls, Zambia

In situations that are active and thrilling, surprisingly quiet moments can take place. These moments feel even more powerful because of ...

Festival of Colors

Clouds of neon-colored powder enveloped villages across northern India last week as the spring  Holi Festival  began, coating people in a...

Sydney Before Earth Hour

Lights from Sydney, Australia's many buildings paint the harbor two days before Earth Hour 2013, which took place on March 23. The ...

Going Green

In Madrid, plants turn a wall in the Paseo del Prada bright green. Green walls are particularly useful in reducing pollution in street ...

Green Gold

A vertical garden (pictured) won the gold medal in the 2011 Chelsea Flower Show in London. Each year Green Roofs for Healthy Cities iss...

Against the Wall

The ability of green walls, such as this one at the Musée du Quai Branly in Paris, to cool street canyons is especially key in the summer...