The saga of the Klamath provokes a more fundamental, yet often ignored, set of questions: What is a river for? Irrigation?

At a bend in Zambia’s Kafue River, the bicolored waterberry trees resemble an avenue planted along a city boulevard. Their ...

Hippos are dangerous — highly territorial and fiercely protective of their young. They are capable of capsizing boats and ...

Gambia, one of the smallest countries in Africa, has a geographical shape that immediately catches the eye. Its territory is ...

Africa's tropical belt, defined by the Guinean forests of west Africa and the Congo Basin of central Africa, is globally ...

Macroinvertebrates include snails and larvae of dragonflies, caddisflies, mayflies and stoneflies, among others. They can be ...

JOHANNESBURG - As South Africa prepares to assume the G20 presidency, there are growing calls for the country to use this platform to put African agriculture firmly on the global agenda.

The amount of groundwater that has been pumped out of the Colorado River Basin since 2003 is enough to fill Lake Mead, researchers report in a study published earlier this week.

"The Colorado River Basin is losing groundwater at an alarming rate," said Karem Abdelmohsen, the lead author and a researcher at ASU's School of Sustainability.

As the Colorado River’s reservoirs have declined, even larger amounts of groundwater have been drained from aquifers. Using satellite data, scientists have estimated the vast water losses.

The cost of the Amite River Basin Commission master plan could top $3.8 billion.

The Amite River Basin Commission recently outlined 13 major projects in its first master plan. Of the costs estimated, the plan could reach more than $3.8 billion. Bayou Manchac improvements: Cost ...