Thousands of protesters gather for the Youth Climate Strike at City Hall Plaza in Boston, on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Protester holds a sign at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Man in polar bear costume at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
People hold signs during the Main Rally at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Young protesters listen to the Main Rally speakers at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Woman holds a sign during the Main Rally at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Protesters shout during the Main Rally at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Young girl holds a sign at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Thousands cheer during the Main Rally at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Young protesters near the main stage at the Main Rally at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Protester holds a sign during the Main Rally at the Youth Climate Strike at City Hall Plaza in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Young protesters march from City Hall Plaza to the State House in Boston during the Youth Climate Strike on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Thousands march to the State House in the Youth Climate Strike on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Climate protesters march to the State House in Boston for the Youth Climate Strike on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Sign at the Youth Climate Strike in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Climate protesters march to the State House in Boston for the Youth Climate Strike on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Climate protesters march to the State House in Boston for the Youth Climate Strike on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Protesters at Boston Common during the Youth Climate Strike on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Young climate protesters speak the crowd at the State House during the Youth Climate Strike in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service
Protesters gather at the Massachusetts State House during the Youth Climate Strike in Boston on Sept. 20, 2019. Photo by Mariana Sánchez Gaona/BU News Service