FEDERAL WAY, WASH. — Frosty Hardison is neither impressed nor surprised that An Inconvenient Truth, the global-warming movie narrated by former vice president Al Gore, received an Oscar nomination this week for best documentary.

"Liberal left is all over Hollywood," he grumbled after the nomination was announced.

Hardison, a parent of seven in the suburbs of Seattle, has himself roiled the global-warming waters. It happened early this month when he learned that one of his daughters would be watching An Inconvenient Truth in her seventh-grade science class.

"You will not teach or show that propagandist Al Gore video to my child, blaming our nation — the greatest nation ever to exist on this planet — for global warming," he wrote in an e-mail to the Federal Way School Board.

The computer consultant is an evangelical Christian who says he believes that a warming planet is "one of the signs" of Jesus Christ's imminent return for Judgment Day.

Hardison's e-mail (along with complaints from a few other parents) kept the film from being shown to the class.

The teacher, Kay Walls, says she was told by her principal that she would receive a disciplinary letter for not following rules that require her to seek permission to present "controversial" materials in class.

The e-mail also pressured the school board to impose a ban on screenings of the film for the district's 22,500 students. The ban was lifted Tuesday night, subject to rigorous conditions. An Inconvenient Truth now may be shown only with the written permission of a principal — and only when it is balanced by alternative views.

Hardison was pleased, but the action has triggered a national backlash.

Members of the school board say they have been bombarded by e-mails and phone calls accusing them of ignorance, pandering to religion and imposing prior restraint on free speech.

Walls, meanwhile, said she is struggling to find authoritative articles to counter the Gore documentary.

"The only thing I have found so far is an article in Newsweek called 'The Cooling World,' " the teacher said.

It was written 32 years ago.