NVDL: Notice the green line going 'off the charts'. The level for the last 450 000 years peaked at under 300 ppm. We're now 25% above that level, at 377ppm (recorded in 2004). CH4 is worse (from 800ppm to 1755ppm).
The experts argue that these gasses don't matter since they form about 1% of the atmsophere. Problem is, they are the gases that inercept/reflect visible light - meaning, they can reflect it completely, or allow it in but not out again (Greenhouse effect|). In this sense, the level of these gasses is critical.
The experts argue that these gasses don't matter since they form about 1% of the atmsophere. Problem is, they are the gases that inercept/reflect visible light - meaning, they can reflect it completely, or allow it in but not out again (Greenhouse effect|). In this sense, the level of these gasses is critical.
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