Will there be scientifically confirmed evidence of rapid human biological adaptation to climate change, challenging our current understanding of evolutionary timelines, by the end of the 21st century?

Resolution Criteria:

• This market will resolve to "Yes" if, by December 31, 2100, there is a peer-reviewed study published in a reputable scientific journal that demonstrates human biological adaptation directly attributable to climate change, in a manner that suggests faster-than-expected evolutionary processes. Examples could include changes in body temperature regulation, skin pigmentation, or other genetic or physiological adaptations.

• The market will also resolve to "Yes" if widespread and undeniable physical changes in human populations are observed and widely recognized as a direct result of climate change adaptation, even if not fully captured in a single peer-reviewed study.

• These findings must significantly challenge or expand our current understanding of the pace at which evolution can occur under environmental pressure.

• If neither of these conditions is met by December 31, 2100, the market will resolve to "No."