What environmental phenomenon is associated with carbon dioxide and chlorofluorocarbons (CFCs)?

The phenomenon associated with carbon dioxide and chlorofluorocarbons (CFCs) is global warming. Carbon dioxide is a greenhouse gas that traps heat in the Earth's atmosphere, leading to a rise in global temperatures. CFCs, while primarily known for their role in ozone depletion, also contribute significantly to global warming due to their potency as greenhouse gases. Their presence in the atmosphere can have long-lasting effects on climate change, as they can remain for decades or longer.

In contrast, acid rain is primarily caused by sulfur dioxide and nitrogen oxides, which lead to the formation of sulfuric and nitric acids in the atmosphere. Ozone depletion involves the breakdown of ozone in the stratosphere, primarily due to CFCs, but is not directly related to carbon dioxide. Noise pollution refers to harmful or annoying levels of noise in the environment and does not relate to the chemicals mentioned in the context of climate change and greenhouse effects.