Google Inc. (GOOG) Chairman Eric Schmidt said the world’s biggest Internet search company made a mistake in funding a political group that opposes U.S. action on climate change.

Schmidt said Google paid the American Legislative Exchange Council as part of a lobbying campaign on an unrelated issue. Without elaborating on Google’s relationship with the group, Schmidt said facts about global warming aren’t in dispute.

“The people who oppose it are really hurting our children and grandchildren and making the world a much worse place,” Schmidt said on NPR’s “Diane Rehm Show” yesterday. “We should not be aligned with such people. They are just literally lying.”...