What is something that sounds 100% false but is actually 100% true?

https://lemmy.ca/post/1425047

What is something that sounds 100% false but is actually 100% true? - Lemmy.ca

European settlers committed genocide in America on such an incredible scale that the global climate cooled.
How do they measure the global climate back into the past?
Thank you. So they indirect trapped gas under layer of ice.