April 15 (Bloomberg) -- President George W. Bush plans to outline his principles on climate change tomorrow as he and lawmakers wrangle over proposals to cut greenhouse gas emissions, administration spokeswoman Dana Perino said.

In a speech scheduled for 2:45 p.m. Washington time, Bush ``is not going to lay out a specific proposal,'' Perino said. Instead he will set out ``realistic'' goals for reducing pollution that many scientists say is contributing to global warming, she said.

The president wants to make sure the world's major economies, whose representatives are meeting in Paris this week, avoid a ``Kyoto-like mistake'' in addressing the issue, according to Perino. He wants to avoid ``companies in other countries gaining a competitive advantage over companies in our country.''

The U.S. Senate is considering legislation that would call for mandatory cuts in greenhouse gases. It would create a potential carbon-trading market of $300 billion, setting a price for emissions from power plants, gas producers and petroleum importers.

Bush's speech comes in advance of a meeting in Paris among U.S. officials and other representatives who have signed onto a major economies climate initiative. Bush wants to make sure France, Germany, India and China all play a role in the solution to global warming, and some analysts said they don't expect the president to change direction.

No `Abrupt Shift'

``I think it's a mistake to view what's under discussion as an abrupt shift,'' Jeffrey Holmstead, the former top official on climate change at the U.S. Environmental Protection Agency, said in a phone interview yesterday.

``After seven and a half years of being the major roadblock to global warming solutions, it's hard to imagine President Bush will reverse course,'' said Daniel Weiss, climate strategy director at the Democratic-leaning Center for American Progress.

Perino reiterated today that the administration opposes the Senate proposals, saying they would have a ``bad effect on our economy.''

Bush rejected the 1997 Kyoto Protocol that set mandates for cutting emissions because he said it would cause economic harm to the U.S. and didn't include emerging economies such as India and China. He has agreed to negotiate a successor accord.

To contact the reporter on this story: Holly Rosenkrantz in Washington at hrosenkrantz@bloomberg.net

Last Updated: April 15, 2008 17:38 EDT