Ocean acidification results from increases in atmospheric carbon dioxide. Tritium occurs naturally due to cosmic rays interacting with atmospheric gases. Cloud albedo has substantial influence over atmospheric temperatures. The tropics take a major role in reducing atmospheric carbon dioxide. The SAM instrument suite analyzes organics and gases from both atmospheric and solid samples. Butane is a gas at room temperature and atmospheric pressure. The earliest fingerprint work focused on changes in surface and atmospheric temperature. At a depth where the atmospheric pressure equals , the temperature is . From 2015 to 2019 sharp rises in levels of atmospheric methane have been recorded. Variations in atmospheric oxygen concentration have shaped past climates. Altitude can be determined based on the measurement of atmospheric pressure. Compressed air is air kept under a pressure that is greater than atmospheric pressure. Containers used for handling vinyl chloride at atmospheric temperature are always under pressure. Evaporative cooling is restricted by atmospheric conditions. Operational resolution should be worse due to effects of the atmospheric turbulence.