Sea ice Andy Mahoney

Arctic sea ice reaches second lowest minimum in satellite record

Sept. 23, 2019

The National Snow and Ice Data Center announced Monday that Arctic sea ice reached its likely minimum extent on Sept. 18, 2019.

Sea stars huddle together under Antarctic ice

Antarctic marine protection treaty offers lessons for global conservation

Sept. 20, 2019

Researchers reflect on the lessons learned from a landmark multinational agreement protecting Antarctica's Ross Sea.

CIRES researcher Matthew Shupe talks Thomas Krumpen from the Alfred Wegener Institute

Epic climate science mission begins

Sept. 20, 2019

Hundreds of researchers from 19 countries are launching a yearlong journey to study Arctic climate.

Aftermath of 2014 tornado in Vilonia, Arkansas

When natural disaster strikes, men and women respond differently

Sept. 19, 2019

Women take cover or prepare to evacuate more quickly but often have trouble convincing the men in their lives to do so, according to a study on how gender influences response to disaster. It also found traditional gender roles and power dynamics resurface, and female voices often go unheard.

INVST students walk along the U.S.-Mexico border

Students get a ground-level view of immigration issues

Sept. 17, 2019

This year, 14 students visited El Paso, Texas, where they got a holistic education in immigration policy, meeting with everyone from migrants to border patrol agents.

Chinook salmon released into Yukon River in Alaska, USA.

Researchers partner with Native Alaskan, Yukon communities to study climate impacts on rivers, fish

Sept. 17, 2019

Researchers at the Institute of Arctic and Alpine Research (INSTAAR) have been awarded $3 million to study the changing climate and rivers of Alaska and western Canada.

A close up of Saturn's rings

Think Saturn’s rings are old? Not so fast

Sept. 16, 2019

Scientists have reignited the debate over the age of Saturn’s rings, suggesting that the features may have formed early in the history of the solar system.

Graduate student Julie Larson and undergraduate Emily Koke in grass

Pushing Boundaries: USDA fellowship funds study of Front Range grasslands

Sept. 16, 2019

To understand how to keep rangeland ecosystems working in the face of climate uncertainty, graduate student Julie Larson is studying how grassland vegetation responds to rainfall and grazing manipulations.

U.S. Passports

More than 700,000 citizenship applications backlogged as application wait times double, report finds

Sept. 13, 2019

People applying for U.S. citizenship have seen application wait times double since 2016, according to a new report prepared in part by University of Colorado Law School faculty and students.

Sunrise in the Indian Peaks Wilderness

Volcanic eruption may explain recent purple sunrises

Sept. 12, 2019

Photographers and others with a keen eye have noticed that sunrises and sunsets have become a lot more purple in the U.S. New measurements from a high-altitude balloon could explain why.

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