City Testing New Weapon In War On Rats: Dry Ice — CBS Chicago

(CBS) — City Hall is testing a new way to rid Chicago of rats: dry ice. You heard that right. Dry ice is carbon dioxide in sold form, and as it melts it transforms into a suffocating gas. Rodent removal crews drop chunks of it into rat burrows and then seal the holes. Experts say…

via City Testing New Weapon In War On Rats: Dry Ice — CBS Chicago

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