Earth Day will be celebrated by many around the world tomorrow.

But some environmentalists are debating the future of a movement that seems to be losing the battle for public opinion.

President George Bush´s re-election, the failure to slow global warming and the fact that large numbers of Americans seem to dismiss them as tree-hugging extremists has green leaders looking for new approaches.

A coalition of national environmental organizations is starting by seeking help from George Lakoff, a University of California, Berkeley linguistics professor.

Lakoff says the entire public agenda has been seized by a right-wing ideological political movement that´s extremely powerful and well-funded.