The Last Time CO2 Was This High, Humans Didn’t Exist Yet, even then neither "Mother Nature", NOR Physics, considered it to be "pollution"..
That was the point.
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Look at the transition from the Jurassic to the Cretaceous.. CO2 started to rise but global temperatures declined by 4-6 deg C over that time. And THEN, after a resurgence in CO2, which peaked 346 million years ago, Temperatures rose until the end of the Paleocene (at which point they dropped markedly), at the same time that CO2 levels dropped off to their present levels.
In NONE of those cases was the "hand of man" involved. And even over the past 3 million years, while CO2 has essentially flatlined (until recently) temperatures have oscillated back and forth.
And the earth survived.. and life that adapted thrived and evolved. Life that didn't adapt died off..
Yet, even during that time, higher life forms (humans) evolved and prospered, especially over the past 10,000 years.
I worry FAR MORE (at this point) about another onset of an Ice Age, than I do about global warming.
I also worry more about the marine food chain starving, than I do about Global Warming, or your hesitation towards using Iron fertilization to restore the dramatically declining phytoplankton populations.
Hawk |
