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Sadaf Mehrabi, Postdoctoral Research Associate, Environmental Engineering, Iowa State University

Climate misinformation is becoming a national security threat. Canada isn’t ready for it.

When a crisis strikes, rumours and conspiracy theories often spread faster than emergency officials can respond and issue corrections.

In Canada, social media posts have falsely claimed wildfires were intentionally set, that evacuation orders were government overreach or that smoke maps were being manipulated. In several communities, people delayed leaving because they were unsure which information to trust.

This wasn’t just online noise. It directly shaped how Canadians responded to real danger. When misinformation delays evacuations, fragments compliance or undermines confidence in official warnings, it reduces the state’s ability to protect lives and critical infrastructure.

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