As Australia copes with catastrophic bushfires that have claimed thousands of homes and dozens of lives, the country’s public has been exposed to hoaxes and disinformation regarding the root causes of the fires. A social media campaign is pushing the false idea that widespread arson is fueling the fires as opposed to record-breaking hot and dry weather linked to climate change. Australian internet researcher Timothy Graham speaks to The World’s host Marco Werman about the disinformation campaign.