Many towns are in the danger zone!
As depicted in the illustration above, we can sometimes experience conditions with highly increased levels of CO2 in the atmosphere. This occurs in certain weather conditions, where there is little wind combined with the lack of rain. The air is not well circulated, and thus the exchange with cleaner air does not happen. These are the same conditions that also cause what we call smog. Some towns are more in danger of such domes. Towns that are located in a valley have a higher risk of bad air, as their location acts as a bowl where air pollution can be collected. Towns where hills shield from the wind are also at risk.
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