Over the next two weeks, extreme levels of humidity are forecast to hit around 40 states, with the first wave of very muggy weather building in central and eastern states through Thursday. Across the ...

There's a particular kind of dread that comes from looking at a map of the world and realizing it no longer looks quite like ...

You probably saw a multi-coloured climate map at least once in school. You might have pored over it, fascinated. Was Antarctica really a cold desert? And why was so much of Russia listed as tundra?

An early-season heat dome is building over the Gulf of Mexico and will bring a week of unusual heat and humidity to southern states, from Texas to Florida, and southward into Mexico and the Caribbean.