Students swarm field at Harvard-Yale football game, chant ‘OK boomer’ in climate change protest

Hundreds of climate change protesters swarmed the field during halftime of the annual Harvard-Yale football game Saturday, delaying the action for nearly an hour as students chanted “OK boomer” and as police made arrests and issued summonses for disorderly conduct.

Players from both teams joined demonstrators on the field in a showstopping escalation of long-running campaigns for the two schools to stop investing their endowments in fossil fuels and forgive Puerto Rican debt. Protesters sat at the 50-yard line at the Yale Bowl in New Haven, Conn., arms linked and...