Global warming alarmists, picking up where the Grinch left off, are trying to steal Christmas, some critics say. From children's books to school plays, the climate change crowd is dreaming of a green Christmas, angering opponents who say 'tis NOT the season to be preachy.

The children's book "Santa Goes Green" by Anne Margaret Lewis tells how a young boy named Finn gets Santa to leave the North Pole to help him track down Leopold, a polar bear he has adopted, because the sea ice is melting and Leopold's home is in danger.

“You see, it’s like this Santa,” Finn tells Santa in the book. “I’ve adopted a polar bear named Leopold. He is in danger of losing his home. I’m sure you being in the North Pole you know about the melting glaciers. All I want this year Santa, is to save Leopold and his home.”

Santa is so inspired by his visit to the polar bear that he decides to re-use last year's wrapping paper, recycle toys and start using wind to generate power for his toy shop.

The book ends with a note from Santa urging kids to send him notes on how to take care of the planet.

But the content has left some reviewers feeling bearish about the book. "The global climate change alarmists are now trying brainwash our kids by infusing their unproven and baseless climate change rhetoric into Santa books," T. Wilkinson wrote on Amazon.com, giving "Santa Goes Green" a one-star review.

"Sad. Really sad," Wilkinson wrote.

Lewis, the author, told USA Today she was inspired to write the book after reading an article with her son Cameron about melting glaciers destroying polar bear habitats.

"He asked how we could help the polar bears, so we started going around the house every time we left a room and shut the lights off," Lewis told the newspaper. "Then we would say, 'We just saved another polar bear."

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