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The colonization of the Americas by Europeans and the deaths of millions of natives brought about a global climate change during the seventeenth century as shown by research published this week by researchers from the United States. University of London [19659002] According to study calculations, about 56 million Indians died between the arrival of Columbus in America in 1492 and the year 1600, both as a result of conflicts with colonizers and diseases caused by Europe.
so many deaths, large areas occupied by Indian villages and plantations were naturally reforested. This resulted in an increase in the concentration of carbon dioxide in the atmosphere and in 1610 the average global temperature dropped by about 0.15 ° C
"Little Ice Age"
This change led to a period known as the "Little Ice Age", in which many countries, especially in Europe, experienced severe temperature declines, resulting in colder winters and less intense summers.
Until then, it was believed that this period until the middle of the 19th century, would only have natural causes. This is the first research that attributes a human cause to this phenomenon. Since then, the temperature in the world has steadily increased
. The researchers came to this conclusion by badyzing the gases stored in the ice extracted from Antarctica. The layers show how the concentration of CO2 has increased dramatically by 1610.
"This was caused by actions on the land, not by the oceans," explained lead researcher Alexander Koch in a statement. interview at CNN. According to one of the co-authors, Mark Maslin, "CO2 levels and climate were relatively high," he said.
Greenhouse Effect
This is the first major historical change that we can see in the levels of greenhouse gases on Earth. "
For Maslin, the extermination of the indigenous population has also helped to accelerate the development of Europe, the natural resources and food brought to the continent have enriched the countries and pushed them earlier. Agriculture to Industry
See below how global warming is changing the landscape of Greenland
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