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Readers' International Day of Climate Action Photos

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From the Hollywood Hills to London's South Bank, TreeHugger readers and writers sent in photos from International Day of Climate Action/350--when atmospheric concentrations of carbon dioxide reach 350 ppm, global warming is dangerously out of control-- events worldwide. Keep checking back we'll be updating this slideshow as they come in. Submit your 350 photos below.

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Image credit: Vanessa Ryder

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