Final answer:
The 2006 documentary "An Inconvenient Truth" warned citizens about global warming.
Step-by-step explanation:
The 2006 documentary "An Inconvenient Truth" warning citizens about Global Warming. The film, featuring former US Vice President Al Gore, examined the effects of greenhouse gas emissions from human activities on the Earth's climate. It discussed rising temperatures, melting ice caps, and the need for urgent action to mitigate the impacts of global warming.
Learn more about global warming