Secretary of state seeks citizenship proof

DENVER – Colorado Secretary of State Scott Gessler has mailed letters to nearly 4,000 registered voters asking them to verify they are naturalized citizens or voluntarily withdraw their voter registrations.

Gessler’s office said Thursday the letters went to people who presented noncitizen documents like a green card when they applied for driver’s licenses and then registered to vote. It is illegal for non-U.S. citizens to vote.

Gessler says his office will work with county clerks to decide how to handle people who don’t respond to the letters.

The U.S. Department of Homeland Security had said it would expand access to an immigration database so that states can use it to remove noncitizens from voter rolls, but Gessler says his office is awaiting a final agreement from the federal government to use it.

Analysis shows promise for carbon storage

DENVER – A coalition studying the potential for storing carbon under the Rocky Mountains says that based on preliminary data, it estimates northwest Colorado could possibly store up to 4.6 billion tons of carbon dioxide emissions underground.

The Rocky Mountain Carbon Capture and Sequestration Partnership said Thursday a final analysis won’t be ready until 2013.

The partnership is a coalition of government, academic and industry interests including the Colorado Geological Survey in states including Colorado, New Mexico, Utah and Arizona.

An $8.8 million federal grant is helping the group study possibilities for sequestering carbon emissions from power plants and industrial sources in deep-saline aquifers, which could reduce greenhouse gases.

University of Colorado bans guns in dorms

BOULDER – The University of Colorado is barring students with concealed carry permits from bringing guns into dorms on its Boulder campus.

The policy announced Thursday is in response to a March Colorado Supreme Court ruling that said CU can’t ban permit holders from bringing guns to campus.

The university also said graduate students who live in university housing off the main campus will be able to have guns in their apartments if they’re kept in a safe.

Associated Press