Whenever the weather changes a vapor is exhaled, which I consider very detrimental to health.
Install vapor barriers on the "warm" wall: Although what is considered the "warm" wall is up for contentious debate, it is generally on the inside of you home, after the insulation and before the final wall material.
Approximately two-thirds of the heat trapped by greenhouses gases is contained in water vapor, and as the average temperature on the planet continues to rise, the amount of water vapor rises in turn.
Chemical vapor deposition is another method to create black or gray diamonds - carbon dioxide is injected into plasma and the resulting crystals may have a black hue.
According to Gore-tex.com, the pores are roughly 20,000 times smaller than a molecule of water and 700 times larger than the molecules of moisture vapor.