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Questions about a mysterious mass of warm water in the Pacific Ocean and its effects on marine life bring researchers to the La Jolla campus.

A business group says the limit will hurt American workers. Environmentalists say it's not strict enough. The rule is intended to reduce the health damage of smog.

Dozens of green tea drinks and pills for sale claim to help you burn more fat. But there's scant evidence that green tea, or any other food or drink product, can have a lasting impact on metabolism.

A revelation goes against widely held ideas about how some glaciers work, and it suggests that at least parts of Greenland's ice sheet survived periods of global warming intact.

As lawmakers revealed a spending bill to keep the government running, they also took the time to weigh in on school lunch, GM salmon, calorie postings on menus and meat labels.

Scott Weems' book HA! explores the science of when we laugh and why. He describes the part of your brain that's active when you laugh, and the controversy over whether ducks are funnier than chickens.

Go cold turkey ... or take tech breaks? Two professors offer different solutions.

The 127-year-old National Geographic magazine will be part of a new venture called National Geographic Partners; Fox will own 73 percent.

In a closely watched case, the U.S. Supreme Court ruled in favor of an Arizona commission that forms the state's electoral districts. The ruling validates efforts in California and other states that use these groups to prevent gerrymandering.

Dolphins may hold the key to understanding how to prevent diabetes in humans, according to a study published this week in the journal PLOS One.