Arctic Sea Ice Loss 
Expected to be Bumpy in the Short Term

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Arctic sea ice extent plunged precipitously from 2001 to 2007, then it barely budged between 2007 and 2013. Even in a warming world, researchers can expect such unusual periods of no change—and rapid change—at the world’s northern reaches, according to a new paper. “Human-caused global warming is melting Arctic sea ice over the long term, but the Arctic is a variable place, said Jennifer Kay, a fellow of the Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder and co-author of the new analysis in Nature Climate Change. Natural ups and downs … [Read more...]

New report charts Colorado’s climate change
 vulnerabilities

Fire Drop

Sea-level rise may not be eating away at Colorado’s borders, but climate change exposes other critical vulnerabilities in the state, according to a new report. Rising temperatures likely will take a toll on cattle and crops, for example, and could more often leave junior water rights holders with little water and few options. The new report, “The Colorado Climate Change Vulnerability Study,” was commissioned by the Colorado Energy Office in accordance with the Colorado Legislature’s House Bill 13-1293, according to a CU-Boulder news release. It’s a sector-by-sector analysis of the … [Read more...]

Teachers Invited to Climate Change Impacts in the Southwest Workshop Feb. 18

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Join us for a free NASA-sponsored workshop about climate impacts in the Southwest. Take part in a Q&A with local climate scientists and educators followed by an interactive presentation by Dr. Fred Lipschultz, from the US Global Change Research Program, and an exploration of teaching and citizen-science resources by Dr. Minda Berbeco, from the National Center for Science Education. When:  Wednesday, Feb. 18 from 5-6:45 p.m. (MST) Where:  University of Colorado Boulder, Cooperative Institute for Research in Environmental Sciences (CIRES) Auditorium Room 338 (map) > Register … [Read more...]

Top 10 Most Viewed Climate Change Reports of 2014

Climate Change heat map

The following reports published during 2014 have been instrumental in guiding the conversation, planning and actions of communities, governments and institutions that are concerned about climate change. These are the top 10 most-viewed reports for 2014 on the Learn More About Climate SlideShare channel. 1. World Economic Forum: Global Risks 2014 The World Economic Forum lists "failure of climate change mitigation and adaptation" as #5 on its list of Ten Global Risks of Highest Concern in 2014. The Global Risks report is widely recognized as one of the world’s leading publications on … [Read more...]

New report highlights how climate change may affect water in Colorado

Report: Climate Change in Colorado

As Colorado’s climate continues to warm, those who manage or use water in the state will likely face significant changes in water supply and demand, according to a new report on state climate change released today by the Western Water Assessment and the Colorado Water Conservation Board. Rising temperatures will tend to reduce the amount of water in many of Colorado’s streams and rivers, melt mountain snowpack earlier in the spring, and increase the water needed by thirsty crops and cities, according to the new report, “Climate Change in Colorado: A Synthesis to Support Water Resources … [Read more...]

CU climate scientists available to speak on National Climate Assessment (NCA)

US Global Change Research Program

Several University of Colorado Boulder scientists can talk about global climate change as it relates to the new National Climate Assessment (NCA) released May 6, 2014 by the White House This includes two co-authors of the assessment, Kristen Averyt and Mark Serreze. Kristen Averyt, associate director for science at the Cooperative Institute for Research in Environmental Sciences (CIRES), a joint venture of the National Oceanic and Atmospheric Administration and CU-Boulder, can talk about water resources as they relate to a changing climate. She was at the White House for the release of the … [Read more...]

CLEAN Wins Webby Award for Teaching Climate on NOAA’s climate.gov

The Webby Awards

Congratulations to our colleagues at the Climate Literacy and Energy Awareness Network (CLEAN)! The Teaching Climate portion of the NOAA climate.gov website, which draws most of its content from the CLEAN collection, won both the juried and People’s Choice awards in the Green category of the 18th Annual Webby Awards. The overall site won in the Government category. Hailed as the "Internet's highest honor" by The New York Times, The Webby Awards, presented by the International Academy of Digital Arts and Sciences (IADAS), is the leading international award honoring excellence on the … [Read more...]

CU-Boulder researchers find common factors behind Greenland melt episodes in 2012, 1889

Atmospheric river events 2012. Credit: Don Murray, CIRES/NOAA

New from Colorado.EDU: In 2012, temperatures at the summit of Greenland rose above freezing for the first time since 1889, raising questions about what led to the unusual melt episode. Now, a new analysis led by the Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder shows that some of the same weather and climate factors were at play in both 1889 and 2012: heat waves thousands of miles upwind in North America, higher-than-average ocean surface temperatures south of Greenland and atmospheric rivers of warm, moist air that streamed toward … [Read more...]

Five questions for Climate Scientist James White

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This interview, conducted by Cynthis Pasquale, originally appeared in the University of Colorado CU Connections website. You can watch videos featuring Professor White on the Climate & Weather section of Learn More About Climate. Humans and ecosystems can adapt to a slowly changing climate, but what happens when these changes happen abruptly? “When it comes to climate change, speed kills,” says James White, a Fellow and Director of INSTAAR (Institute of Arctic and Alpine Research) and a professor of geological sciences at the University of Colorado Boulder. White headed a panel of the … [Read more...]

New Report on Abrupt Climate Change Calls for Increased Monitoring and Early Warning System

West Antarctica Ice Sheet

A new National Academy of Science report on climate change has just been made available from its National Research Council, chaired by Professor James White of CU-Boulder’s Institute of Arctic and Alpine Research. A video replay of the press briefing webcast is now available. Read or download a pdf of the the complete report or view the summary here: Summary: Abrupt Impacts of Climate Change The report, “Abrupt Impacts of Climate Change: Anticipating Surprises,” draws upon recent research to adjust the timeframe within which certain climate change impacts may happen. It emphasizes … [Read more...]