New York City acknowledges "extreme pockets" of lead poisoning remain, in response to a Reuters investigation and independent research by Columbia University scientists.

Peter Kelemen of Columbia University’s Lamont-Doherty Earth Observatory talks about his research on carbon sequestration as a way to fight climate change.

"Before we go looking for life, we're trying to figure out what kinds of planets could have a climate that's conducive to life," Anthony del Genio, an Earth scientist at Columbia's NASA Goddard Institute for Space Studies.

A team of researchers led by Columbia neuroscientist Rafael Yuste and bioethicist Sara Goering recently called for the creation of a system of oversight and ethical guidelines concerning software or hardware used to enhance human abilities.

Alondra Nelson of Columbia University, who studies the ethics of new technologies, says demographic data may contribute to algorithms’ accuracy, but it also complicates their use.

Columbia University's International Research Institute for Climate and Society believes that giving farmers access to reliable weather forecasts can help them increase yields by 20%, and sometimes by as much as 80%.

After being foiled for years by the harsh conditions, Columbia scientist Billy D'Andrea and his colleagues were able to collect key core samples from a remote lake in Svalbard—which may provide valuable insight into how our climate will change over the coming decades.