Climate222
-
Settling in to Work and Life in Barrow
While I arrived in Barrow, Alaska on Tuesday, Lamont-Doherty Earth Observatory scientists Andy Juhl and Craig Aumack, and graduate student Kyle Kinzler from Arizona State University, got here one week ago.
-
Measuring the Effect of China’s Arctic Interests
Of non-Arctic states, China has shown the most interest in the Arctic as climate change opens up the region to new economic development. The ways in which China attempts to balance its economic interests and environmental responsibilities within its energy policy may provide a predictor of its future behavior in the Arctic.
-
Investigating Life in Arctic Sea Ice
Andy Juhl and Craig Aumack, microbiologists from Columbia University’s Lamont-Doherty Earth Observatory, are spending a month in Barrow, Alaska studying algae in and below sea ice, and how our warming climate may impact these important organisms.
-
Photo Essay: Mongolia, Ancient and Modern
Some 800 years ago, ancestors of modern Mongolians conquered the world on horseback. Researchers are investigating whether a spell of unusually mild weather helped propel them by making them rich in livestock.
-
Climate and Conquest: How Did Genghis Khan Rise?
Eight hundred years ago, relatively small armies of mounted warriors suddenly exploded outward from the cold, arid high-elevation grasslands of Mongolia and reshaped world geography, culture and history in ways that still resound today. How did they do it?
-
The Sahel Is Getting Wetter, But Will It Last?
New research gives a unifying explanation of the Sahel’s past, present and future climate patterns.
-
‘Chasing Ice’: Watching History Unfold, and Disappear
Near the end of “Chasing Ice,” a hunk of glacier the size of lower Manhattan explodes, rolls and crashes into the sea. If that sounds like a spoiler, well, go see the movie and you’ll know you would have known it was coming anyway. And the beauty of the movie is that it will still…
-
A Healthy Collaboration
IRI just renewed an agreement with the World Health Organization to be a collaborative center. Research scientist and center director Madeleine Thomson talks about past successes and future research directions.
-
Earth’s Current Warmth Not Seen in the Last 1,400 Years or More, Says Study
Fueled by industrial greenhouse gas emissions, Earth’s climate warmed more between 1971 and 2000 than during any other three-decade interval in the last 1,400 years, according to new regional temperature reconstructions covering all seven continents. This period of manmade global warming, which continues today, reversed a natural cooling trend that lasted several hundred years, according…
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
