CIRES scientists use satellites to uncover how and when the first known ice shelf estuary formed on the Greenland Ice Sheet

El Niño once helped predict Indian Ocean warming. New research shows that climate change is disrupting that centuries-old connection.

Arctic sea ice likely reached its minimum extent for the year, at 4.60 million square kilometers (1.78 million square miles) on September 12, 2026. In the Antarctic, sea ice extent has been tracking…

CIRES@NOAA lab lead at NOAA’s Space Weather Prediction Center serves as a northern lights tour guide in Canada

Abstract. Supraglacial rivers may reduce ice-shelf instability by draining meltwater from the ice-shelf surface, limiting loading-induced stresses from ponded meltwater. However, if a supraglacial riv...

The two-day event is designed to connect researchers with external partners and elevate sustainability research. Explore the program and register to attend.

CIRES scientists use satellites to uncover how and when the first known ice shelf estuary formed on the Greenland Ice Sheet

Can a simple geoengineering approach restore dwindling Arctic ice?

As human-caused climate warming destabilizes high mountain regions, the threat of rock-ice avalanches and other glacial hazards grows.

From climate comedy with students to a conversation featuring Bill Nye, CU Boulder faculty and sustainability leaders will bring research, expertise and

Cold air outbreaks and warm air intrusions link Arctic and midlatitude weather and climate. But a lack of data on these events, especially in winter, limits our understanding.

World Ozone Day is a celebration and a reminder that we can do good things when we come together

A major report has found that 12.5 trillion tons of ice from Greenland and Antarctica have melted since 1979.

Cold air outbreaks and warm air intrusions link Arctic and midlatitude weather and climate. But a lack of data on these events, especially in winter, limits our understanding.

September 13, 2026 | 6 Comments

NSIDC celebrates 50 years in operation as of September 2026.

Assimilation of mid-tropospheric vapor isotopes significantly improves short-term weather forecasts and mean-to-extreme precipitation, especially at mid-latitudes, according to an analysis of 4.5…

The highly anticipated yearly assessment will continue under its independent editorial team led by CIRES researchers

The critical and highly anticipated yearly assessment will be carried forward through a partnership with CIRES/CU Boulder and the University of Alaska Fairbanks.

A simple neural network can infer parameters from synthetic topography generated by a process-based numerical model of landscape evolution The network can be queried to identify a sensible relati...

Public media journalists collaborate with each other and independent newsrooms to deliver coverage that resonates with local audiences.

Nearly half of U.S. reservoirs are more than one-quarter full of sediment. By 2041, wildfires will double sediment accumulation in more than one-third of U.S. watersheds.

Across the West, fast-moving fires wrecked havoc in neighborhoods this summer. A network of scientists and fire experts have joined forces to seek research-based solutions to the problem.

Most cities and regions don’t have formal plans for extreme heat, though they have the power to save lives. Still, these plans are far from perfect.

The highly anticipated yearly assessment will continue under its independent editorial team led by CIRES researchers

The critical and highly anticipated yearly assessment will be carried forward through a partnership with CIRES/CU Boulder and the University of Alaska Fairbanks.

Western Water Assessment hydrologist enjoys film photography

Speaker: Prof. Rajagopalan Balaji CIRES Title: Moving With the Rains Abstract: Humans have been on the move for millennia, with societies and civilizations emerging, declining, transforming, and…

Her work spans from ‘the equator to the Arctic,’ helping us understand what damages forests — and what helps them recover