What was the impact of the changing climate on the primitive man?
Answers
Now, farming today generates quite a bit of greenhouse gas. But most scientists had assumed that pre-industrial farming just wasn't widespread enough to make a measurable impact on the climate. And if farmers in the time of George Washington didn't make a difference, it would seem obvious that farmers 5,000 to 6,000 years ago wouldn't either. After all, there are more people in the state of Florida today than there were in the entire world back then.
However, Ruddiman argues that although there were far fewer people, they used much more land per person than farmers do today—about ten times as much. He says that historical evidence suggests that early farmers burned down acres and acres of forest to plant their crops, plant seeds in the cleared soil, and then do it all again in a few years, when the soil's fertility declined. As farming grew more sophisticated, later civilizations learned to do a lot more with less.
It's important to note that Ruddiman's view remains controversial. Furthermore, his theory shouldn't be misinterpreted to mean that climate change today is no different from that of the ancient past. We now emit greenhouse gases from many sources, like factories and cars, that didn't exist thousands or even hundreds of years ago, and today's global population of over six billion generates much more total greenhouse gas from farming than our early ancestors did. In fact, his work suggests that temperatures at the start of the Industrial Revolution may have already been artificially high, due to human activities—and that modern emissions simply pile much more on top of that. In other words, our responsibility for the planet's climate may extend much further back in time than we thought.
"Impact of climatic change on primitive men
Due to the changing climatic conditions, the primitive men, who were once nomadic, became settled.
The extreme heat of the sun, the freezing cold and snowfall, rainfall, storms and various other factors made him build houses and settlements for themselves.
Initially they used to take shelter in caves, but later they slowly started building huts with thatches, leaves, barks of tress, straw etc and with the course of time learnt the art of building houses.
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