What impact can refrigerants have on global warming?

Refrigerants can significantly contribute to global warming, mainly due to their potent greenhouse gas properties. Many refrigerants, especially hydrofluorocarbons (HFCs), have a much higher global warming potential compared to carbon dioxide. This means that even small amounts of these gases released into the atmosphere can have a disproportionately large impact on the planet's warming.

While refrigerants serve the essential function of cooling systems, their chemical composition can trap heat in the atmosphere, exacerbating the greenhouse effect. This contribution is concerning in the context of climate change, prompting international efforts to reduce the use of high-GWP refrigerants through treaties like the Kigali Amendment to the Montreal Protocol.

The other options do not appropriately reflect the impact of refrigerants on the environment. They do not cool the atmosphere, do not accelerate mass transportation, and their contribution to climate change contradicts the notion of having no impact. Recognizing the role of refrigerants in global warming is crucial in developing strategies for reducing greenhouse gas emissions and protecting the environment.