Young climate change activists took to the streets all around the world on Friday morning, with San Francisco high school and college students proving that the city's reputation for progressive politics continues on in the next generation.

Although Bay Area public school districts did not grant excused absences for those attending the SF Global Climate Strike, that didn't stop thousands of local students from skipping class in order to march in support of environmental issues. The protest began at 10 a.m. outside the Federal Building at Seventh and Mission streets and ended at Embarcadero Plaza.

Like any good protesters, they made signs. Lots of them.

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An elementary school student sitting atop a newsstand held a flag with the phrase "the itsy bitsy spider will drown if you do nothing" written on it. Another pre-teen held a cardboard sign that read "do not mess with my future." Older protesters carried a quilted banner adorned with the poignant phrase, "100 grandmothers for future generations." And a mother-daughter pair pleaded for the safety of San Francisco's patron weather saint, Karl the Fog.

Click through to see all the inspiring photos from the march.

Dan Gentile is an SFGATE digital editor. Email: dan.gentile@sfgate.com | Twitter: @dannosphere