What we are missing here in the United States is the environmental leadership that we had during the 1970s and 1980s when we showed the world how to grow an economy while building our knowledge of ecosystems and reducing the degree of damage we were inflicting on the natural world. Since 1990, technology has advanced…

El Niño is earth’s most powerful climate cycle, influencing weather and affecting crops, water supplies and public health globally. What may be the strongest El Niño ever measured is now getting underway, and is already affecting parts of the world.

The Earth Institute and Emerald Brand recently co-hosted “Your Choices Matter,” a sustainability awareness event at Columbia University’s Alfred Lerner Hall.

The resistivity testing was hampered by bad roads and flooded fields. The augering was proving similarly difficult in the thick muds of the abandoned channel. It was time to change to our alternative plan: drilling with tube wells. That worked better and we had turned a corner.

A new study in Science questions the provocative idea that climate change may shape the texture of the sea floor. A Snickers bar helps explain what’s really going on.

A new video produced by Columbia University tells the story of what the research vessel Marcus G. Langseth is all about.

Heading out to our field area, we discovered that the abandoned river valley we planned to study was completely flooded. There was pani—the Bangla word for water—everywhere.

Nicolás Young was just named a winner of a 2015 Blavatnik Award for his work measuring ice sheets in changing climates of the past. His new projects are taking glacier tracking to the next level.

Returning to Bangladesh for additional fieldwork, I stopped off in India for several meetings, but we found time for some sightseeing, too. We were able to see the Qutub Minar complex in Delhi as well as the Taj Mahal and Agra Fort in Agra. Plus all the meetings in Delhi, Kolkata and Dhaka were very…