PHOTO: 10 Year Challenge Shows Great Barrier Reef Downfall

The 10 year photo challenge has been trending on Facebook. Basically, it's a photo of yourself from 10 years ago against yourself now, showing how much you've changed since social media has boomed in popularity.

It's been cool seeing how much people have changed...and then the Great Barrier Reef posted an eerie photo of what's happened there.

It's sad, really.



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