Earth, too hostile to living beings at the end of this century?

The news was released on July 9, 2017 in the very serious New York Magazine. Scientists are developing eight disaster scenarios making, say, cold in the back. Among these scenarios, we find well-known concepts, including melting ice, rising temperatures and air pollution or acidification of the oceans.

Permafrost covering 1 / 5th of the Earth’s surface has become a major concern for scientists since it does not remain completely frozen permanently, as it has been in the past. The problem is that Arctic permafrost contains 1.8 trillion tonnes of carbon just waiting to be released. The carbon in question is usually released in the form of methane, a greenhouse gas 34 times more harmful than carbon dioxide. Obviously, melting ice threatens shorelines and islands near sea level.

The human body, like that of mammals, must maintain its average temperature at 37 ° C. Global warming, synonymous with rising temperatures, could lead to a hard life for people in tropical and equatorial areas where the heat should be stifling or even deadly. Indeed, scientists give the example of Costa Rica (Central America) with its humidity of 40% and where the outdoor temperature should approach more often 40 ° C.

Earth, too hostile to living beings at the end of this century:

The World Health Organization (WHO) has set standards for air quality. However, two billion humans will breathe more polluted air than the norms predict, and this, on the eve of the next century, in 2090. Are accused of industrial pollution, as well as deforestation in the Amazon which alone provides 20% oxygen available on Earth. In addition, since a third of carbon is absorbed by water, ocean acidification is also a source of great concern.

Finally, there are other risks that researchers have mentioned. For example, the potential emergence of new diseases transmitted via bacteria released by ice melting. The drought is also expected to transform a large number of areas into uninhabitable deserts, which could lead to famine. There are also resource pressures such as dwindling water and survival-based conflicts that are expected to increase. Moreover, whether there is a resource at stake or not, wars and other conflicts could unfortunately play a destructive role for the quality of life that our planet has offered us for millennia.

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