Tracing the evolution of forest trees

There are at least 60,000 identified tree species in the world, "but we know next to nothing about how they got here," Elizabeth Stacy says. "Trees form the backbone of our forests, and are ecologically and economically important, ...

Hawaii volcano lava wave nears homes

Smoldering lava from a slow-erupting volcano has reached within yards (several meters) of homes on Hawaii's Big Island, emergency officials said Monday as villagers braced to evacuate.

Massive debris pile reveals risk of huge tsunamis in Hawaii

A mass of marine debris discovered in a giant sinkhole in the Hawaiian islands provides evidence that at least one mammoth tsunami, larger than any in Hawaii's recorded history, has struck the islands, and that a similar ...

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