“We knew 100 years ago what would happen by burning fossil fuels.”
Dean Phillips
Democratic presidential candidate. an event in Manchester, N.H.. Claim dated 19 Jan 2024.
PolitiFact rated thisSome was known, but not fully
What PolitiFact found
Theories began circulating in the 1800s, but it took until later in the 20th century for this knowledge to begin to solidify and become widely accepted.
Their words, from the summary they publish with the rating.
In short
Dean Phillips (Democratic presidential candidate) made this claim around 19 January 2024. PolitiFact (United States) looked into it and published its finding on 21 January 2024, 2 days later. Its rating was “Some was known, but not fully”.
This check was done by PolitiFact, not by DoesItStand. We list it so you can find it. Their full evidence and reasoning are in their article.