Coastal wetlands linked to Galveston Bay and other bodies of water.

Researchers are traveling the Gulf area to determine the oil spill impact.

Experiment with plastic bergs shows their potential effects when capsizing.

Cousteau relatives together onstage for first time.

Hazardous debris could turn up along the West Coast in the next few years.

Such blooms are common in the southern oceans during spring and summer.

Scientists welcome deep-sea dive for myriad reasons.

The historic dive didn't reveal any strange life forms.

Italy's wild winter: First snow in Rome, now this.

What looks like a harbor is actually Don Muang Airport.

The chalky soil supplies the beautiful colors in the water.

Nutrient-rich waters create large blooms of algae.

From Hungary to Austria, see what's wreaking havoc on the shipping industry.

Officials scramble to protect the city.

He kept busy down there…

Team spends 10 days nearly 50 feet below the waves.

One of thousands of reefs in the Great Barrier Reef.

Techniques will help inform future reef-restoration efforts.

The project aims to get at data that are now impossible to reach.

Cabo Pulmo National Park booming with fish.

Mission has already turned up several artifacts.

Tide shifts Earth's surface, tilts lake's water level.

Brilliant colors caused by opposite conditions on the lakes.

Sea ice extent was unusually large this winter.

Planes will monitor Greenland ice sheet, Arctic sea ice.

Computer models, buoys track its progress.

Researchers emphasizes importance of planning and evacuation drills.