12 Dams that Changed the World

Renewable energy rather than mega dams and fossil fuels is the right choice for the 21st century. Even so, numerous destructive dams continue to be proposed and built on the Mekong, in the Amazon, throughout Africa, in China, the Himalayas and other parts of the world.

Saving the Colorado River Delta, One Habitat at a Time

A trickle of water is being returned to a few parts of the dried-out delta—and those parts are blooming. Thanks to a bi-national agreement, a “pulse flow” of water eventually made its way to the sea, the first time the Colorado River reached the Gulf of California in years.

Nicaragua Defies Canal Protests

Nicaragua has great expectations for the Grand Canal, a US$50-billion, 5-year project to link its Caribbean and Pacific coasts with a 280-kilometre waterway. But the plan has attracted protests from residents along the proposed route and from scientists around the world.

After Steep Decline, Signs of Hope for World’s Sea Turtles

Nearly all sea turtle species have been classified as endangered, with precipitous declines in many populations in recent decades. But new protections, particularly in the U.S. and Central America, are demonstrating that dramatic recovery for these remarkable reptiles is possible.

Protect the World’s Deltas

Nile Delta Desert Islands, batik on silk by © Mary Edna Fraser 52” x 36”, 1999

The rich delta ecosystem and the services it provides, storm protection, nutrient and pollution removal and carbon storage, are being destroyed. Worldwide deltas are on course to drown, starved of sediment by dams and dikes, and fragmented by economic development. Rising seas compound the sediment crisis.