Climate change could affect the ratio of human males to human females that are born in some countries, a new study from Japan suggests.
See images shot by a hiker trapped on the top of Mount Ontake, the Japanese volcano that erupted on Sept. 27.
At least 31 hikers have been found lifeless near the peak of Mount Ontake after Saturday's volcanic eruption.
A new volcanic island growing 600 miles south of Tokyo is still growing, and scientists worry it could collapse and cause a tsunami, or else explode. Continue reading →
Japan's devastating 9.0 earthquake in 2011 has dangerously increased the pressure beneath Mount Fuji, an active volcano. Continue reading →
The Japan Meteorological Agency said a local tsunami of up to one metre (3.3 feet) could impact the Pacific coastline after the quake.
The Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi-NPP satellite catches a glimpse of a storm churning with 150-mile-per-hour winds.
Ocean whirlpools, some hundreds of miles across, contribute to extreme weather around the world.
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