SEATTLE (AP) — These aren't your typical loos. One uses microwave energy to transform human waste into electricity. Another captures urine and uses it for flushing. And still another turns excrement into charcoal.

Mayor John Lewis dropped the first doggie bag into eTURD, the dog waste digester at Cosmo Dog Park, in Gilbert Saturday.

Sustainability, medical, mechanical engineering and military problems don’t have to be solved solely by private corporations or government agencies.

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