Nature constantly adjusts the atmospheric carbon level. An increase in the level causes the atmosphere to hold more heat, which causes more water to evaporate from the oceans, which causes increased rain. Rain washes some carbon from the air into the oceans, where it eventually becomes part of the seabed. A decrease in atmospheric carbon causes the atmosphere to hold less heat, which causes decreased evaporation from the oceans, which causes less rain, and thus less carbon is washed into the oceans. Yet some environmentalists worry that burning fossil fuels may raise atmospheric carbon to a dangerous level. It is true that a sustained increase would threaten human life. But the environmentalists should relax -- nature will continually adjust the carbon level. Each of the following can be inferred from the information in the passage EXCEPT: ['A decrease in the level of carbon in the atmosphere causes decreased evaporation of ocean water.', 'A decrease in the level of atmospheric heat causes a decrease in the level of carbon in the atmosphere.', 'An increase in the level of atmospheric heat causes increased rainfall.', 'A decrease in the level of atmospheric heat causes a decrease in the amount of carbon that rain washes into the oceans from the air.']