According to scientists, if current trends in man-made climate change are not slowed, humanity could face extinction within the next few centuries. Additionally, the threat awaits us from potential nuclear conflicts.
Regarding the “death” of the Sun, it is stated that approximately 4.5 billion years remain before this event on Earth. Planetary scientist Ravi Kopparapu of NASA’s Goddard Space Flight Center indicates that the Sun will go through a “red giant” stage when its supply of hydrogen for nuclear fusion runs out and the process of dying begins.
After thermonuclear reactions stop, gravity will begin to compress the helium core, causing a sharp expansion of the outer plasma layer of the Sun. This expansion will cover at least the Earth’s orbit.
Regarding the final days of the Earth, scientists suggest that it probably will not last the full 4.5 billion years, or its condition will change beyond recognition. According to Kopparapu, the long-awaited “death” of the Earth will begin with intense warming long before the Sun completes its transition to a red giant. High temperatures will cause the oceans to evaporate, the atmosphere to disappear, and then the solar gravitational tidal forces will destroy the Earth.
In about 1.3 billion years, humanity will no longer be able to survive due to constant heat and humidity. In 2 billion years, the oceans are predicted to evaporate when the sun’s brightness increases by almost 20% compared to current levels.
Some species of living organisms, such as “extremophiles”, can survive in these conditions, such as hydrothermal vents on the ocean floor. However, it is not possible for a person to survive at such high temperatures and humidity, since the body is not able to cool itself through sweating. New research even suggests that temperatures of 30 degrees can be deadly. Some regions of the Earth are already experiencing temperatures above 32 degrees, and climate models predict this will become commonplace in regions such as the Middle East by the end of the century. Thus, the threat of climate change and greenhouse gases may become a significant problem for the Earth long before the death of the Sun.
Earlier, “Cursor” wrote that scientists told when life arose in the Universe.
