CO2 is a good proxy for airborne infectious disease risk. Outdoor air is 400 ppm or so, best practice in modern building going into the pandemic was 600 ppm. Get CO2 down to 450 ppm and airborne infectious disease transmission plummets.
We have varied reactions to parts of the world that still suffer the consequences of human waste in irrigation water. In the far future people will view our current indoor spaces with similar varied reactions.
We have varied reactions to parts of the world that still suffer the consequences of human waste in irrigation water. In the far future people will view our current indoor spaces with similar varied reactions.