Younger voices against climate change gathered at San Francisco Embarcadero Plaza today.

As KCBS Radio's David Welch reports, organizers say the rally and march was a chance for the next generation of climate activists to take back the meaning of Earth Day.

<p>Younger voices against climate change gathered at San Francisco Embarcadero Plaza today.</p>
<p>As KCBS Radio's David Welch reports, organizers say the rally and march was a chance for the next generation of climate activists to take back the meaning of Earth Day.</p>

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