But here's the challenge: They need about $300,000 to make their solar panels, composting toilet, xeriscaping and other proposals come to life.

As students in a sustainability course, they are learning what it takes for their ideas to come to fruition, said Bill Johnson, professor of geology and geophysics.

"They learn just what it takes to create an initiative," he said.

The hope is that the proposed environmental enhancements to the new Frederick Albert Sutton Building, home to the university's department of geology and geophysics, will set an example for the campus and the state.

The $25 million building is expected to be completed in 2009. Private donations used to construct the building will not cover the "green" improvements.

If the students are successful, they'll be able to come back years from now with their own families to see their accomplishments, said Marjorie Chan, chairwoman of the geology and geophysics department.

"It's not very often that students will be able to participate in a project that will have this lasting permanence," she said.

A proposed rooftop garden would replace the land being displaced by the new building, said Elzard Sikkema, a senior. The system would increase the lifespan of the roof, be home to native and regional plants, and provide insulation for the building.

"This is an attempt to enhance the biological productivity of the building," said Alexandra Parvaz, a graduate student.

Other ideas include a storm-water collection system that would store water to be used in the rooftop garden, landscaping and some toilets. Tubular skylights would bring natural light into the building and increase staff and student productivity.

Christopher Strong, a junior, described the skylights as cheap and easy to install - not to mention practical.

"It's just kind of a smart thing to do, to use something that's widely available: the sun," he said.

To find out more about the 11 proposals or to donate money or materials, contact Johnson at 801-581-5033 or e-mail him at william.johnson @utah.edu.

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* JULIA LYON can be contacted at jlyon@sltrib.com or 801-257-8748.