Theoretically speaking, humans could live as long as the universe exists.
It may have got us where we are today, but we could make-do without it. They live at the bottom of the ocean, and so once the top layer of the ocean freezes over, the heat from the Earth will remain in the water long enough to keep them warm, and they don't engage in photo-synthesis so their's no need for any actual sunlight.
One thing to note, though, is that oxygen will eventually start to freeze and fall to the earth as "oxygen snow", so we would have to manually collect our oxygen and heat it to the point of being breathable again.įinally, there are certain types of aquatic life-forms that already exist in a cycle completely independent of the sun. Sure, it will be expensive, but there will also be a lot less people to feed, so things will even out. As for oxygen, without the sun plants won't be able to produce any more, but the amount of oxygen already in our atmosphere is enough to sustain life on Earth for the next several billion years.Īs for food, we already have the technology needed to grow plants without the need of an actual sun. However, the earth gives off its own heat, and so an underground bunker or a settlement around a geyser or any such settlement taking advantage of geothermic energy can hypothetically sustain human life.
Within 1 years time the average surface temperature of the Earth will be -70 degrees Celsius. Most people cover themselves in suntan lotion to block the suns harmful rays, but what a lot of people do not know is that the suntan lotion also blocks the vitamins A and D from the sun, so make sure to spend a least a few brief moments in natural sunlight without lotion or at the very least, buy yourself a vitamin A and D supplement tablets which will give you the precious Vitamin A and D we all need to live a normal, healthy life. Here is an interesting fact, "when the military submarine was created and began to be used regularly during war times, men would spend many days or even months underwater without sunlight, because of this, the crew members would develop scurvy, brittle bones and even Rickets disease. So it is very important that we spend a short time each day in direct sunlight, even if only for 10 minutes. Vitamins A and D are not found in our food as readily as other vitamins such as vitamin C. Without vitamins A and D, to process calcium in our bodies, we would develop extremely fragile bones which if deprived long enough of these vitamins, could lead to such brittle bones that even a very small misstep or a simple fall could cause our bones to shatter. Most people know just how important it is to get vitamin A and vitamin D on a regular basis. Yes we can survive without the sun, but the quality of life without sunshine would be very bad.
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