A massive earthquake up to magnitude 9.2 strikes the Pacific coast on average every 243 years -- and it's been 315 since the last one. Continue reading →
This year's El Niño is historically powerful, after unprecedented changes related to global warming, according to the World Meteorological Organization. Continue reading →
A new map shows nearly 65,000 inactive mines--but many more are out there, posing environmental hazards.
Speaking in Alaska, President Barack Obama warned that climate change is no longer a problem of the future, but rather a challenge for now and one that will define the next century.
Why the different names? And what's a tropical storm?
It’s an ideal laboratory -- or perhaps a harbinger -- of how climate change could affect the rest of the lower 48 states.
Two anonymous fortune hunters claim to have pinpointed the Nazi-era loot, but a Polish official says there's no proof it exists.
If the National Zoo's firstborn panda cub hadn't died just five days after it was born, it would have been a fraternal twin to the surviving panda.
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