A recent event hosted by the Columbia Water Center highlights the challenges and opportunities that the nation’s beleaguered water system presents.

Columbia scientists drilling deep into ancient rocks in the Arizona desert say they have documented a gradual shift in Earth’s orbit that repeats regularly every 405,000 years, playing a role in natural climate swings.

From filter bubbles to fake news, data-driven algorithms have developed a reputation problem. Jeannette Wing, the new director of Columbia’s Data Science Institute, wants to change that.

Carol Mason and Mihalis Yannakakis were elected by their peers in recognition of outstanding research achievements. Membership in the Academy is one of the highest honors in science.

Research by tree-ring scientist Laia Andreu-Hayles will provide much-needed observational climate data for Bolivia and Peru and insight into the climate sensitivity of tropical tree species in the Andes.

In March, a team of scientists led by Columbia's William D’Andrea collected sediment cores from wetlands on Rapa Nui, which will be used to examine aspects of climatic, environmental, and human land-use history.

In a new study, Columbia scientists have discovered why the brain’s olfactory system is so remarkably consistent between individuals, even though the wiring of brain cells in this region differs greatly from person to person.