It was unseasonably warm in Boston as thousands met in Boston City Hall Plaza to participate in a school strike to address global warming on Friday, September 20.

As students gathered, temperatures approached 80 degrees, capping the hottest summer on record, according to the National Oceanic and Atmospheric Administration.

Approximately 115 Waring School students, nearly two-thirds of the school, skipped classes to participate in the Boston Youth Climate Strike, which drew more than 10,000 participants. More than four million students went on strike globally to protest climate change.