Lava flows, near mile-thick glaciers and ice age floods layered and carved up this landscape.

Estoria Wright says living in Columbia’s Colony Apartments is like being in prison. Besides frequent crime at the low-income ...

Columbia University acting President Claire Shipman faced loud booing and chants of “Free Mahmoud” at a commencement ceremony on May 20, bringing her speech to a standstill as students ...

TORONTO - A warming climate is driving a rise in Lyme disease and the introduction of lesser-known tick-borne diseases, public health specialists say.