Why do wildfires often ignite a firestorm of conspiracy theories?

It's yet to be determined what exactly ignited the ferocious wildfires that ravaged Maui and destroyed much of the historic town of Lahaina last week, but online conspiracy theorists have plenty of thoughts about how — and why — the deadliest fires in Hawaii's history were started. 

Conditions were already ripe for wildfires, with a combination of persistent dry weather and drought, when Maui was hit with powerful winds on Aug. 8, sending flames racing across swaths of the island. 

But the tragedy has spurred social media posts that would have you believe that it was a laser beam from space that sparked the devastating blaze or that the disaster may be a part of a land grab or a sinister ploy to develop a 15-minute city on the tropical island — familiar conspiracy theories that have thrived in times of disaster. 

There is no proof any of these are true — often they can easily be debunked — but theories like these can thrive in times of uncertainty after a disaster strikes, say experts, as people try to make sense of a tense and emotional situation and anxiously look for a cause to pinpoint.

"Everybody is susceptible to mis- and disinformation, but in different ways and for different reasons," said Samantha Bradshaw, an assistant professor at the school of international service at American University in Washington, D.C. 

But wildfires in particular, she said, present a unique opportunity for rumours and false narratives to spread.

"They are just so visible and so devastating and so violent in their effects, it's really hard for people to not pay attention to news about them." 

The wildfires damaged or destroyed more than 2,200 buildings in Maui and left thousands of people displaced. By Wednesday morning, the death toll had topped more than 100 people, although hundreds more remain unaccounted for. 

The spread of false and misleading information during a tragedy like this is "deeply upsetting," said Mike Rothschild, a journalist and author based in Los Angeles who writes about conspiracy theories and fringe beliefs. 

Various posts on X, the social media platform formerly known as Twitter, purport to show a light beam and some sort of direct energy weapon sparking flames in Maui, using images from unrelated incidents. In one case, it was an image of a SpaceX rocket launch, while another used a video from a transformer explosion in Chile.

"What these conspiracy theories do is that they almost absolve people of any kind of human feeling other than anger," Rothschild told CBC News. 

Rothschild examines the viral laser conspiracy theory in his forthcoming book Jewish Space Lasers: The Rothschilds and 200 Years of Conspiracy Theories. Rothschild is not related to the famously wealthy family that is the focus of his book and the target of various antisemitic conspiracy theories.

The eyebrow-raising title is rooted in a 2018 Facebook post from U.S. Rep. Marjorie Taylor Greene, a Republican member of Congress who is widely known for her past embrace of QAnon conspiracies.

According to Media Matters for America, the now-deleted Facebook post suggested a wildfire raging in California at the time, one of the worst in the state's history, could have been caused by a "laser beam or light beam coming down to Earth" from a solar generator in space. Greene also drew connections between the state's electric utility, Pacific Gas and Electric Company (PG&E), and the Rothschild Inc. investment banking firm in the post.