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A limited nuclear weapons exchange between Pakistan and India using their current arsenals could create a near-global ozone hole, triggering human health problems and wreaking environmental havoc for at least a decade, according to a study led by the University of Colorado at Boulder.

Fiske Planetarium and Sommers-Bausch Observatory will celebrate National Astronomy Day on the University of Colorado at Boulder campus on Saturday, April 12, with an array of hands-on family-oriented activities.

Homer Hickam, author of the book "Rocket Boys," will participate in two University of Colorado at Boulder events April 17-18 as part of the One Book One Boulder County program.

A memorial service for renowned philosophy Professor Emerita Hazel Barnes will be held Saturday, April 12, at 10 a.m. in the Old Main Chapel on the University of Colorado at Boulder campus.

University of Colorado at Boulder Title IX consultant Nancy Hogshead-Makar (pronounced MAY-car) will be available to members of the media on Thursday, April 3, from 10 a.m. to 11 a.m. in Regent Hall, room 302, the former Chancellor's Conference Room.

Reducing global emissions of carbon dioxide this century is going to be more challenging than society has been led to believe, according to a new research commentary article appearing April 3 in Nature.

University of Colorado at Boulder Professor Xinzhao Chu has been awarded a $1.2 million grant from the National Science Foundation to build a revolutionary lidar that will allow scientists to probe the upper layers of the atmosphere with unprecedented accuracy.

Howard Hughes Medical Institute President and University of Colorado at Boulder Distinguished Professor Tom Cech announced today that he will step down as the top HHMI administrator and return to CU in spring 2009 to resume his research and teaching.

Sandra Day O'Connor, the first woman appointed to the U.S. Supreme Court and one of the better-known justices of modern times, will give a public talk at the University of Colorado at Boulder on April 17 at 7 p.m. in Macky Auditorium.

The University of Colorado at Boulder will launch a social marketing campaign on Thursday, April 3, designed to help prevent suicide called "Don't Erase Your Future."