Jan
11
2018

University College London

As climate change and the world warms, humans have evolved to handle the effects. Perhaps, the people of yoruba from West Africa to live in arid conditions have shown as they have evolved despite the change in the climate in your region, something that can be seen in various reports recorded by newspapers in Europe. Similarly, this leaves because there is sufficient time to adapt to a new climate. The yoruba have been exposed, historically, to the drought in the Sahel at the edge of the Sahara desert. To find out if they had evolved has become a research from Stanford University in California examined the variation of a gene that is knows who is involved in the retention of water in the kidney, called FOXI1. This analysis was done based on DNA samples from 20 European, 20 East Asian and 20 yoruba. The study which was subsequently seen in different journals of Spain, found that 85% of the yoruba had an identical sequence of information Genetics which produced by genetic recombination randomly showing a feasible evolution of genes in extreme weather situations. The length of this genetic sequence suggests a change oclimatico end in the last 10,000 to 20,000 years, which may have coincided with the initial stages of the desertification of the Sahara.

They also discussed a region of the gene in 971 samples of 39 human populations around the world, including the yoruba, and found that the same genetic sequence has higher frequencies in the lower latitudes. In the lower latitudes there are more likely to be regions of water, this suggests that natural selection and evolution in these areas was related to the weather. However, a geneticist at University College London, notes that evidence is only indirect, since we do not know if the genetic variation in the yoruba people actually has given value to their survival. By foregoing the world press study opens a new question: can humans do evolve to adapt to climate change? long term, if the Earth stays in heating, would not be surprised to see that they begin to happen different genetic changes. It is difficult to predict what a human will in the future. Some scholars have suggested that heavier women tend to have more children the cualese inherit these characteristics, therefore be expected that the average woman will be shorter and heavier for the year of 2049. Due to that species in hot environments evolve your body so that radiate the heat better. Thus climate change will make humans taller and thinner.

It is likely that we will find an optimal point in which we will be able to cope with higher temperatures, but we still have enough fat to be reproductively successful. Apart from the reproductive success of the human being, the main engine of the evolution are the differences in mortality. You are expected distribution of diseases a turnaround as the world warms. The ease of transportation and the large global population represents that human beings have a great risk of more diseases than at any other time in our evolutionary history. If there is something that is likely to evolve quickly, it will be genes that provide resistance to diseases. Evolution is a slow process, will however, any adaptation does not save us from impending problems related to climate change. We are not going to evolve our way out of problems.

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