What is the most abundant greenhouse gas in the atmosphere?
Understand the Problem
The question is asking for information regarding greenhouse gases, specifically which one is the most prevalent in the atmosphere. This involves understanding the types of greenhouse gases and their concentrations in the atmosphere.
Answer
Water vapor
The most abundant greenhouse gas in the atmosphere is water vapor.
Answer for screen readers
The most abundant greenhouse gas in the atmosphere is water vapor.
More Information
Water vapor is responsible for about half of Earth's greenhouse effect, but it is not directly influenced by human activities in the same way other greenhouse gases such as carbon dioxide are.
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