Global warming

Hotter world cooks up storms

Hurricanes like Katrina may be followed by even fiercer storms if we don’t put the brakes on human-induced global warming.

What is global warming?

When we burn fossil fuels to run our cars, homes and industries, we produce increased amounts of carbon dioxide and other gases that persist in the atmosphere and trap heat.

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Live healthier

Lifestyle »

E-cigarettes: Here are five things to know

E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places.

Allergy »

Ditch the itch: Researchers find new drug to fight hives

A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.