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Re:Architect Resigns in Protest over UCSB Mega-Dorm by sbierwagen on Friday October 29, 2021 @02:47PM (#29042162)
>Outside air is just above 400ppm

In 2015 it was, sure. We'll probably hit a seasonal peak of 420ppm next year. https://gml.noaa.gov/ccgg/trends/

RCP8.5 has us at 1000ppm by the end of the century. By then outside air ventilation will mostly be needed to keep people in meeting rooms from putting themselves into a coma.

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