The guys dive into a bizarre website that may be an art project, the ramblings of a lunatic, or something more sinister. For years, LEGO bricks have been washing up along the coast of the UK. Multiple scientists, asking to remain anonymous, write in with disturbing details on the problem of micro- and nanoplastics. The good news? The guys were right about the problem. The bad news? The guys didn't know just how right they were. All this and more in this week's installment of Listener Mail.

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Listener Mail: A Mysterious Website, LEGO Bricks in the Ocean, and Warnings From Anonymous Plastics Scientists