Trace Gas Definition
by Laurent Cousineau
A trace gas is a gas that makes up an extremely small portion of a mixture of gases.
Trace Gas and Climate Change
When discussing climate change
, trace gas
refers to any of the less common gases found in the Earth's atmosphere
Essentially, nitrogen and oxygen are the most common gases representing about 78.1% and 20.9% of the Earth's atmosphere respectively.
Hence, every other gas is considered a trace gas.
Despite their very small concentrations, trace gases have several important effects on both the Earth's weather
More importantly, many of the gases mentioned above are greenhouse gases
responsible for the greenhouse effect
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