MADISON, Wis. (AP) -- Wisconsin should reduce greenhouse gases to 2005 levels within the next six years and cut that by another 75 percent by mid-century.

Those are among the final recommendations from Gov. Jim Doyle's global warming task force released Thursday.

The task force suggests designating a single agency to coordinate data collection on greenhouse gases, more investment in research into greenhouse gas reduction technologies and a cap-and-trade program, be it a national or regional effort.

The panel also recommends statewide standards for siting wind farms, studying the potential for offshore wind farms in the Great Lakes and increasing electricity generated from renewable sources.

The report now goes to Doyle for his consideration.