Based on the research of the Dutch lime shell industry, Jun Zhang’s (Shanghai, China, 1990) Respiration is a grand scenario made by fiction, exhaling devices, sound, and light installations, amongst others. Inside the exhaling devices, creatures composed of lime skin and biomaterial are living. The work speculates a future species whose life requires the intervention of human respiration. Here, the carbon dioxide exhaled by humans would make the lime continue to strengthen, meanwhile the humidity and microorganisms in the human breath would activate the cells inside the lime shell skin. This speculation is rooted in questions of whether the carbon dioxide emissions that cause global warming and climate change today might become the basis for the birth of new species. Respiration takes the human body as a medium, and the planet’s atmosphere as a trigger, to speculate a new life form in a future climate environment.