'Cruelly hot': Japan devises new term for heat wave days

Blistering temperatures rising to 40°C and above will now be branded "cruelly hot" or "kokusho-bi" in Japan, the weather agency said Friday, as heat wave days become increasingly frequent in the region.

Navigating the past with ancient stone compass needles

Magnetic rocks with iron oxide concentrations act as natural chroniclers of Earth's past continental movements. Using small samples of rocks, scientists can isolate magnetic grains that were frozen in orientation as the rock ...

Massive Atlantic sargassum blooms traced to West Africa

Massive blooms of Sargassum seaweed that have inundated coastlines across the Atlantic since 2011 likely originate off the coast of West Africa—forming years before they are visible and overturning long-standing assumptions ...

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