Quote:
Originally Posted by AustinMike
So consider an increase of CO2 levels in the atmosphere of more than 2 ppm each and every year. Nothing to worry about?
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Exactly. Nothing to worry about.
In Minnesota, the temperature often varies by 100 degrees over a 6 month period, from hitting sub-zero temps in January to topping 100 for a few days in July. During some days, the temperature can vary as much as 40 degrees, from night to day. And yet, a 1 or 2 degree change, spread over 100 years or longer, is going to cause extinctions and dramatically change the planet? Come on. If a frog can adapt to a 100 degree change in its environment over a 6 month period, one or two degrees spread over 100 years (and fifty or more generations of frogs) isn't going to affect them at all. That's just silly.
I'm sure the difference between the recent mini ice age and today was a bigger change, and life adapted. Furthermore, ice ages cause a lot more death and turmoil to life forms than warmth, generally.