Quote:
Originally Posted by The Fonz
I don't think anyone disputes that climate change is real. The climate has been changing on Earth for 4.5 billion years.
The argument, from what I can tell, is over the impact of a .01% increase in atmospheric CO2. There is skepticism and disagreement that this additional .01% of atmospheric CO2 is having undesirable effects on our environment, if any at all.
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I nominate The Fonz as our spokesperson to set Greta straight
The ~9800 years preceding the last 200 years showed a gentle increase from about 265ppm to ~280ppm.
Around 1912, atmospheric CO2 levels breached the 300 ppm threshold for the first time in at least 2.1 million years. In the last few years we've broken through 400ppm!
Dry air is still composed of roughly 78.09% nitrogen, 20.95% oxygen, 0.93% argon, and 0.04% carbon dioxide...
messing with the hundreths of decimal points is obviously no big deal because we have so much air...