Oil slick in the Gulf of Mexico.

Aerial view of the littoral combat ship Independence underway during builder's trials in the Gulf of Mexico.

Tropical Storm Alex over the Gulf of Mexico.

Satellite view of streaks and ribbons of oil brighten the reflection of the Sun off the Gulf of Mexico.

Tropical Storm Isaac moving through the Gulf of Mexico.

Eye of Hurricane Elena in the Gulf of Mexico.

Dust heading west toward South America and the Gulf of Mexico..

Tropical Storm Andrea in the Gulf of Mexico and over Florida.

U. S. Coast Guard Cutter Waesche in the navigates the Gulf of Mexico.

The amphibious assault ship USS Makin Island in the Gulf of Mexico.

Oil spreads northeast from the leaking Deepwater Horizon well in the Gulf of Mexico.

U. S. Coast Guard Cutter Waesche in the navigates the Gulf of Mexico.

Two QF-4E's fly over the Gulf of Mexico.

Two QF-4E's fly over the Gulf of Mexico.

A QF-4E aircraft flies over the Gulf of Mexico.

Two QF-4E's fly over the Gulf of Mexico.

A QF-4E aircraft flies over the Gulf of Mexico.

View of North America with rise in sea level 330 feet above average.

A Sikorsky S-76 utility helicopter prepares to take off from an oil rig.

AgustaWestland AW109E utility helicopter on the helipad of an oil rig.

A Sikorsky S-76 utility helicopter taking off from an oil rig.

Eurocopter EC135 utility helicopter on the helipad of an oil rig.

Eurocopter EC135 utility helicopter on the helipad of an oil rig.

A Bell 407 utility helicopter on the helipad of an oil rig.

Cleopatra

Egyptian painting

Woolly Mammoths in the prehistoric northern hemisphere.

Antique Illustration (wood engraving) of a Circular Mountain Scene, "Giant's Gap" (location: Sierra Mountains, near Lake Tahoe in Northern California)

Head of dark-skinned woman

Dark-skinned man with a turban

Arabian royalty in turban

Egyptian woman dressed up in jewels

Boy wearing traditional Mexican clothing in front of the map of Mexico

Young man smiling, pointing toward camera, digital composite.

Young man in cyberspace pointing to world globe, digital composite.

Young woman emerging from computer monitor, hand toward camera, the word "stop" on hand, digital composite.

View of the northern Gulf of Mexico.