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Originally Posted by Baron Opal
Nah, during the Mesozoic era it is hypothosized that the CO2 levels were much higher and the planet much warmer than it is now. Now, if we pump that much carbon back into the atmosphere it might be an unpleasant ride back to that climate, but we as a species will survive nicely.
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Yes, the Mesozoic was warmer and had about as much CO2 as we presently have, but the amount of CO2 is the atmosphere is rising much faster than it ever has. At this rate of increase, global temperatures could rise by as much as 11*C before this century is over.
Check it.
Past changes in temperature that were this severe took place over millions of years. This temperature change would take place over 50-100 years. Species would not have time to adapt, there would be massive extinction events, and if this continues the entire region between the tropics could be totally useless within 200 years as the average temperatures in that region shoot above 50*C.
Not to mention that at the current rate of growth, the human population density will reach one person per square meter of dry land in about the year 2600.
Are we definitely all going to die? No. But we damn sure could kill off a whole lot of us if we don't limit ourselves.