More than half of humans on track to be overweight or obese by 2035 – report

increased respiration, increased farming, etc.

edit: “ The researchers estimated that obesity contributes to an extra 700 megatons of carbon dioxide emissions per year worldwide, or about 1.6% of all human-caused emissions” - WebMD

“Fat shaming” could be renamed to “global warming shaming” at this point, and it is only getting worse, especially methane.