A couple of climate change billboards in Saskatoon are drawing some heat. Not everyone likes their message.

Billboards paid for by the group Friends of Science are popping up not only in Saskatoon — but also Regina, Edmonton, Calgary and Ottawa.

The group argues that the sun is the main driver of climate change, not carbon dioxide.

Another national group, Ecojustice, has filed a false advertising complaint with the competition bureau.

In Saskatoon, Allysha Larsen complained to the billboard company herself.

"I wanted to know if there was a way we could get rid of these ads because I think they are misleading."

"I feel like they're like false advertising and false advertising isn't permitted," Larsen said.

Friends of Science is not backing down, however.

"I think it partly is a free speech issue," said Michelle Stirling, the group's communications manager. "I think especially in the terms of science. Scientific inquiry is about inquiry not compliance."

Larsen said she contacted the billboard company, Outfront Media, and it advised her to complain to the Advertising Standards Council. She said she will.

Her complaint won't be the first. Stirling said 96 other people have also complained to the advertising standards council about her group's messages.

The billboards they complained about claimed: "The Sun is The Main Driver of Climate Change. Not You. Not CO2" and "Global Warming Stopped Naturally 16+ Years Ago."

In its decision, the Advertising Standards Council wrote: "After careful consideration, Council found that the categorical and unequivocal claims made in both advertisements could not be supported by the preponderance of current evidence on the matters in dispute.

"In addition, Council found in the case of the advertisement that claimed 'The sun is the main driver…', that it omitted relevant information, namely that a number of factors have led to climate change, of which the sun is just one."