Supreme Court: Eighth Amendment doesn’t require a “painless” execution

the excruciating pain of prolonged suffocation," id. … Second, Mr. Bucklew contends that while either method will cause him to experience feelings of suffocation for some period of time before he is rendered fully unconscious, the duration of that period will be shorter with nitrogen than with pentobarbital…

Washington has a serious rat problem, complaints up 64%

His explanation for how dry ice works is concise, and a little dramatic: "The CO2 that emanates from the dry ice suffocates the rats, and their homes become their graves," he said... … With complaints to the city's 311 phone line concerning rats at a four-year high, city officials are turning to dry ice — the frozen form of carbon dioxide — to suffocate rodents…