MADISON, Wis. (AP) -- A new report says nuclear power plants would take too long to build and are too expensive to make any impact on global warming.

The report, released by Wisconsin Environment, an environmental advocacy organization, notes scientists believe developed nations must reduce emissions dramatically by 2020 to limit global warming.

The report says the first new nuclear reactor in the United States probably won't be completed until at least 2016. Money that would go to new plants would be better spent on renewable sources.

State Rep. Mike Huebsch, a West Salem Republican, has pushed to repeal Wisconsin's moratorium on nuclear power. He says groups like Wisconsin Environment are still living off the hysteria of 1970s meltdowns and will do anything to delay nuclear plant construction.