Despite Warnings, Ocean Circulation Not Slowing Down

Scientific evidence and Hollywood's "The Day After Tomorrow" have fueled fears that global warming could disrupt the Atlantic Ocean's main circulation system and drastically alter global weather patterns, but there is no firm evidence that shows this is actually happening, says a prominent oceanographer. The main ocean circulation system, called the global conveyor belt, helps redistribute heat around the planet. Warm surface water flows poleward from the tropics and cools, becoming denser and eventually sinking when it reaches the North Atlantic. The cooled water then returns along the bottom of the ocean to the tropics...