President Bush has called for action in the fight against global warming, but said it must be done in a way that does not hinder economic growth.
Mr. Bush made the comment Friday, on the final day of a two-day international conference on climate change at the U.S. State Department.
The meeting has brought together the world's largest polluters, including the United States, China and India.
President Bush described the Washington meeting as an "important step" in seeking solutions to reducing greenhouse gases blamed for global warming.
The United States, China and India oppose mandatory cuts in greenhouse gases sought by most European countries and the United Nations.
The Washington conference is focusing on setting strategies beyond 2012, when the Kyoto Protocol on climate change expires.
Critics say the forum is designed to derail a new initiative by the United Nations to replace the Kyoto Protocol.
Mr. Bush has rejected the treaty, which calls for mandatory cuts of greenhouse gases, arguing that it will hurt the U.S. economy and does not include emerging economies such as China and India.
President Bush did not attend a climate meeting Monday at the United Nations attended by representatives of more than 150 nations.
Some information for this report was provided by AFP.