A vast, ancient slab of seafloor plunged beneath the Pacific Ocean and has hovered in Earth’s mantle for more than 120 ...

Forecasters are predicting a weak La Niña event for this winter. Here's what that means for weather in the US.

China does not normally test-launch its nuclear missiles on the island of Hainan, which faces the South China Sea.

La Niña is part of a natural climate cycle that can cause extreme weather across the planet. It is likely to last for another ...

The National Oceanic and Atmospheric Administration’s Climate Prediction Center says there is a 60% chance that a weak La Nina event will develop this autumn and could last until March.