HabitableZone

Off Topic » in reply to Breathing Earth

Re: Breathing Earth

What amazes me is how some people are more concerned about the growth of the budget deficit than they are about the growth of the population. I guess it depends on which saturation and collapse event they are most likely to experience during their lifetime.

They constantly point out how the RATE of population growth is declining, but they fail to mention that the population will still continue to grow, barring global catastrophe.

"The highest rates of growth – global increases above 1.8% per year – were seen briefly during the 1950s, and for a longer period during the 1960s and 1970s. The growth rate peaked at 2.2% in 1963, and had declined to 1.1% by 2011. Total annual births were highest in the late 1980s at about 138 million, and are now expected to remain essentially constant at their 2011 level of 134 million, while deaths number 56 million per year, and are expected to increase to 80 million per year by 2040. Current projections show a continued increase in population (but a steady decline in the population growth rate), with the global population expected to reach between 7.5 and 10.5 billion by 2050."

http://en.wikipedia.org/wiki/World_population


By the time you get to be my age, the world population will have increased (over today's number) by more people than lived in the entire world when I was your age.

I'm afraid I'm going to miss it.

As far as global warming due to CO2 is concerned, I wouldn't wory about it. According to Stefan-Boltzman Law, the power radiated at the surface of a heated body increases
as the fourth power of its temperature. The radiated energy increases faster than the temperature, so sooner or later, the earth's temperature will reach a new equilibrium at some higher temperature and level of emission of thermal infrared radiation.

We have every reason to believe it won't be as high as Venus.

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