Diane Trout (alienghic) wrote,
Diane Trout
alienghic

Yes, really, 350 ppm

According to Jim Hansen, a noted climate scientist, we need to stabilize carbon dioxide levels at no more than 350 parts per million. His data also says we cannot pass at most 450 ppm, without irreversible damage to our climate. We are currently at 385 ppm. Below are the measurements from Mauna Loa.

The implication is that the line representing current carbon dioxide concentration needs start going down right now.

Tags: climatechange
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