Global warming scenarios: what future awaits humanity

Modern scientists call global warming one of the main threats to humanity in the 50st century. Despite the fact that climate change, which is in full swing today, may seem insignificant, in 100-XNUMX years it could become catastrophic.

In order to understand the scale of the problems that humanity risks facing, it is enough to consider the three global warming scenarios that scientists talk about.



It is worth noting that over the past 100 years, the average temperature of the Earth's surface has increased by 0,9 degrees Celsius. Moreover, such a slight increase led to a number of negative consequences, from cataclysms to rising sea levels.

Over the next centuries, the temperature of the earth's surface will rise more rapidly. According to NASA research, in a worst-case scenario, our planet could “warm up” to 8 degrees in a couple of hundred years. How much this is can be understood from the calculations of scientists.

So, three global warming scenarios and their consequences are discussed.

The first involves increasing the temperature by 2-3 degrees. In this case, mountain glaciers and rivers will begin to disappear, and mountain regions will face a huge number of landslides previously contained by permafrost. Sea levels could rise by a meter, displacing 10% of the world's population inland.

The ecosystem will collapse, 40% of the Amazon forests will be destroyed, and a third of the world's population will face famine. Cities in Asia, Australia and the southeastern United States will be devastated by powerful hurricanes. And this could happen by the end of this century.

If the temperature rises by 3-4 degrees, hundreds of millions of people will begin to flee coastal areas, as the cities where they lived will be submerged under water or become islands. Ice at both poles will disappear, which could lead to a rise in sea levels of up to 50 meters. Summer will be longer, and forests will turn into firewood.

If the temperature rises by 6 degrees, the rain forests will become deserts, and the mass migration of surviving people to the few places that are relatively suitable for living will lead to numerous bloody conflicts. However, it will be extremely difficult to live in such places. Indeed, with such warming, even Canada and Russian Siberia will be too hot to grow food. But that's not all.

Stagnation of the oceans will eventually lead to a significant release of hydrogen sulfide, which will kill all marine life. Then, if the sea warms enough, massive reserves of methane hydrate will begin to rise to the surface. As a result, at the slightest spark or lightning strike, fireballs will begin to burst across the sky.

These will be tens and hundreds of explosions that will put an end to all life on Earth.