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For 400,000 years carbon and methane in the atmosphere followed a pattern dependent on predictable changes in earth's axis and orbit. Then 7,000 years ago ...
Climatologists agree that approximately 7,000 years ago carbon levels took an unexpected turn.
There was also an unaddressed issue: 5,000 years ago there was an unexpected rise in methane gas.... Doing research, Ruddiman found that 5,000 years ago Asia experienced a massive expansion of rice paddies.
news.mongabay.com...
Originally posted by dbates
Surely there's something to this. What event would end the cycle of 400,000 years of constant, predictable, steady carbon levels on Earth? Why the sudden interest in agriculture and farming? For reasons yet unknown to us, mankind suddenly began dominating the planet a little over 5,000 years ago. Why the sudden increase in knowledge?
Originally posted by John Matrix
This is confirmed in the ancient texts that are referred to as the book of Genesis.
Originally posted by Avenginggecko
Handy inventions tend to spread quickly in populations. Group X figures out how to farm, shows Group Y how, Group Z conquers Y and learns agriculture, etc. etc. and in the space of a few decades you have large swaths of people farming.
Originally posted by Avenginggecko
But for the "intelligent nudge" theory
Then one day, someone got bored in the tribe, planted a seed in the ground, and watched it grow. And they thought, "Hmm...let's plant some more!" Viola!