How do trees improve air quality?

Trees play a crucial role in improving air quality primarily through the process of photosynthesis. During this process, trees absorb carbon dioxide from the atmosphere, a greenhouse gas contributing to climate change. In exchange for carbon dioxide, trees produce oxygen, which is essential for the survival of nearly all living organisms on Earth. This exchange significantly contributes to a healthier atmosphere by reducing levels of carbon dioxide and replenishing oxygen.

Additionally, the presence of trees can help mitigate air pollution in other ways, such as by providing shade and cooling urban environments, which can reduce the formation of smog. However, the most direct and impactful way trees improve air quality is through their ability to absorb carbon dioxide effectively while releasing oxygen. This fundamental biological process underscores the critical role trees play in maintaining healthy ecosystems and combating climate change.