Climatologists: South Asia could become uninhabitable by the end of the century

© Illustration RIA Novosti . Alina Polyanina temperature Maps of the «wet thermometer» in South Asia today and in 100 yearsClimatologists: South Asia could become uninhabitable by the end of the century© Illustration RIA Novosti . Alina Polyanina

Further increase in temperature and a sharp increase in humidity will actually make the entire India and other South Asia are unsuitable for human life, say scientists in an article published in the journal Science Advances.

«This region is home to about 1.5 billion people, most of whom live in conditions where their life depends on their personal farmland. For them you need every day to care for, being a few hours in the sun. It makes the people of South Asia are particularly vulnerable to these climate changes,» says M. elfatih Eltahir (Elfatih Eltahir) from the Massachusetts Institute of technology (USA).

As noted by Eltahir and his colleagues, approximately three-quarters of people in South Asia today living in areas that are not actually be habitable after a century. They came to this conclusion, trying to figure out how to change the so-called «wet bulb temperature» in the next 100 years in India, Bangladesh, Pakistan, and adjacent countries.

As the scientists explain, the «wet bulb temperature» geologists and climatologists have called the combination of two factors – ambient temperature and accompanying moisture. It is a very simple thing – above this point no object will not be able to cool themselves by evaporating moisture from the surface.

This is a very important parameter, as our body cools down by evaporating sweat from the skin surface. Accordingly, if the «wet bulb temperature» will exceed 35 degrees Celsius, a person expects to overheating, heatstroke and even death in a few hours, in the absence of external cooling.

Two years ago, Eltahir and his colleagues have found that the Gulf countries will move through this level very quickly, in 70 years of this century, if the Paris climate agreement will not be executed.

The situation in South Asia, according to calculations of scientists, will be even more dramatic – the «wet bulb temperature» is above the level of 31-32 degrees Celsius for approximately 75% of the population of India and other countries in the region, if all States refuse to reduce greenhouse gas emissions. Approximately 4% of them will live in regions where the rate will step over a mark in 35 degrees Celsius, and will become officially uninhabitable.

In that case, if humanity is to deal with the consequences of global warming, the situation will change, but not much. In this case, it is incompatible with life conditions are typical for the regions where he now lives about half the population of South Asia, and maximum temperature are very close, but will not exceed 35 degrees.

The reason for such a large and serious changes in the climate of South Asia, as the scientists explain, is a few things – the plain area of the region, a large number of precipitation in the summer season and constantly high level of humidity, as well as many large rivers and a high prevalence of irrigation systems.

Overall, as emphasized by Eltahir, struggle with these consequences of global warming should be, first and foremost, the business of the people of India. India, along with China, is one of the main «suppliers» of greenhouse gases in the atmosphere, whose share is growing, not declining, as in the developed countries of the West.

Accordingly, the lack of desire to fight climate change, due to the fact that such measures will slow the growth of the Indian economy today, can lead to very serious consequences for its residents in the near future, the scientists conclude.

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