Sindre Wiig Nordby Here's a snapshot from the USDA. Looks like 400ppm is 0.04% of the air. So CO2 makes up a tiny portion of the air.
Even if it went up 5.5x, like it did at my place in the winter, it still doesn't make up much of the air.
Sindre Wiig Nordby Here's a snapshot from the USDA. Looks like 400ppm is 0.04% of the air. So CO2 makes up a tiny portion of the air.
Even if it went up 5.5x, like it did at my place in the winter, it still doesn't make up much of the air.